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志zhì第dì十shí四sì天tiān文wén上shàng

若ruò夫fú法fǎ紫zǐ微wēi以yǐ居jū中zhōng,拟nǐ明míng堂táng而ér布bù政zhèng,依yī分fēn野yě而ér命mìng国guó,体tǐ众zhòng星xīng而ér效xiào官guān,动dòng必bì顺shùn时shí ,教jiào不bù违wéi物wù,故gù能néng成chéng变biàn化huà之zhī道dào,合hé阴yīn阳yáng之zhī妙miào。爰yuán在zài庖páo牺xī,仰yǎng观guān俯fǔ察chá,谓wèi以yǐ天tiān之zhī七qī曜yào、二èr十shí八bā星xīng,周zhōu于yú穹qióng圆yuán之zhī度dù,以yǐ丽lì十shí二èr位wèi也yě。在zài天tiān成chéng象xiàng,示shì见jiàn吉jí凶xiōng。五wǔ纬wěi入rù房fáng,启qǐ姬jī王wáng之zhī肇zhào迹jì,长zhǎng星xīng孛bèi斗dòu,鉴jiàn宋sòng人rén之zhī首shǒu乱luàn,天tiān意yì人rén事shì,同tóng乎hū影yǐng响xiǎng。自zì夷yí王wáng下xià堂táng而ér见jiàn诸zhū侯hóu,赧nǎn王wáng登dēng台tái而ér避bì责zé,《记jì》曰yuē:“天tiān子zi微wēi,诸zhū侯hóu僭jiàn。”于yú是shì师shī兵bīng吞tūn灭miè,僵jiāng仆pū原yuán野yě。秦qín氏shì以yǐ战zhàn国guó之zhī余yú,怙hù兹zī凶xiōng暴bào,小xiǎo星xīng交jiāo斗dòu,长zhǎng彗huì横héng天tiān。汉hàn高gāo祖zǔ驱qū驾jià英yīng雄xióng,垦kěn除chú灾zāi害hài,五wǔ精jīng从cóng岁suì,七qī重zhòng晕yūn毕bì,含hán枢shū曾céng缅miǎn,道dào不bù虚xū行xíng。自zì西xī京jīng创chuàng制zhì,多duō历lì年nián载zài。世shì祖zǔ中zhōng兴xīng,当dāng涂tú驭yù物wù,金jīn行xíng水shuǐ德dé,祗zhī奉fèng灵líng命mìng,玄xuán兆zhào著zhù明míng,天tiān人rén不bù远yuǎn。昔xī者zhě荥xíng河hé献xiàn箓lù,温wēn洛luò呈chéng图tú,六liù爻yáo摛chī范fàn,三sān光guāng宛wǎn备bèi,则zé星xīng官guān之zhī书shū,自zì黄huáng帝dì始shǐ。高gāo阳yáng氏shì使shǐ南nán正zhèng重zhòng司sī天tiān,北běi正zhèng黎lí司sī地dì,帝dì尧yáo乃nǎi命mìng羲xī、和hé,钦qīn若ruò昊hào天tiān。夏xià有yǒu昆kūn吾wú,殷yīn有yǒu巫wū咸xián,周zhōu之zhī史shǐ佚yì,宋sòng之zhī子zi韦wéi,鲁lǔ之zhī梓zǐ慎shèn,郑zhèng之zhī裨bì灶zào,魏wèi有yǒu石shí氏shì,齐qí有yǒu甘gān公gōng,皆jiē能néng言yán天tiān文wén、察chá微wēi变biàn者zhě也yě。汉hàn之zhī传chuán天tiān数shù者zhě,则zé有yǒu唐táng都dōu、李lǐ寻xún之zhī伦lún。光guāng武wǔ时shí,则zé有yǒu苏sū伯bó况kuàng、郎láng雅yǎ光guāng,并bìng能néng参cān伍wǔ天tiān文wén,发fā扬yáng善shàn道dào,补bǔ益yì当dāng时shí,监jiān垂chuí来lái世shì。而ér河hé、洛luò图tú纬wěi,虽suī有yǒu星xīng占zhān星xīng官guān之zhī名míng,未wèi能néng尽jǐn列liè。

后hòu汉hàn张zhāng衡héng为wèi太tài史shǐ令lìng,铸zhù浑hún天tiān仪yí,总zǒng序xù经jīng星xīng,谓wèi之zhī《灵líng宪xiàn》。其qí大dà略lüè曰yuē:“星xīng也yě者zhě,体tǐ生shēng于yú地dì,精jīng发fā于yú天tiān。紫zǐ宫gōng为wèi帝dì皇huáng之zhī居jū,太tài微wēi为wèi五wǔ帝dì之zhī坐zuò,在zài野yě象xiàng物wù,在zài朝cháo象xiàng官guān。居jū其qí中zhōng央yāng,谓wèi之zhī北běi斗dǒu,动dòng系xì于yú占zhàn,实shí司sī王wáng命mìng。四sì布bù于yú方fāng,为wèi二èr十shí八bā星xīng,日rì月yuè运yùn行xíng,历lì示shì休xiū咎jiù。五wǔ纬wěi经jīng次cì,用yòng彰zhāng祸huò福fú,则zé上shàng天tiān之zhī心xīn,于yú是shì见jiàn矣yǐ。中zhōng外wài之zhī官guān,常cháng明míng者zhě百bǎi有yǒu二èr十shí,可kě名míng者zhě三sān百bǎi二èr十shí,为wèi星xīng二èr千qiān五wǔ百bǎi;微wēi星xīng之zhī数shù万wàn一yī千qiān五wǔ百bǎi二èr十shí,庶shù物wù蠢chǔn动dòng,咸xián得dé系xì命mìng。”而ér衡héng所suǒ铸zhù之zhī图tú,遇yù乱luàn堙yīn灭miè,星xīng官guān名míng数shù,今jīn亦yì不bù存cún。三sān国guó时shí,吴wú太tài史shǐ令lìng陈chén卓zhuó,始shǐ列liè甘gān氏shì、石shí氏shì、巫wū咸xián三sān家jiā星xīng官guān,著zhù于yú图tú录lù。并bìng注zhù占zhàn赞zàn,总zǒng有yǒu二èr百bǎi五wǔ十shí四sì官guān,一yī千qiān二èr百bǎi八bā十shí三sān星xīng,并bìng二èr十shí八bā宿xiù及jí辅fǔ官guān附fù坐zuò一yì百bǎi八bā十shí二èr星xīng,总zǒng二èr百bǎi八bā十shí三sān官guān,一yī千qiān五wǔ百bǎi六liù十shí五wǔ星xīng。宋sòng元yuán嘉jiā中zhōng,太tài史shǐ令lìng钱qián乐lè之zhī所suǒ铸zhù浑hún天tiān铜tóng仪yí,以yǐ硃zhū黑hēi白bái三sān色sè,用yòng殊shū三sān家jiā,而ér合hé陈chén卓zhuó之zhī数shù。高gāo祖zǔ平píng陈chén,得dé善shàn天tiān官guān者zhě周zhōu坟fén,并bìng得dé宋sòng氏shì浑hún仪yí之zhī器qì。乃nǎi命mìng庾yǔ季jì才cái等děng,参cān校jiào周zhōu、齐qí、梁liáng、陈chén及jí祖zǔ恆héng、孙sūn僧sēng化huà官guān私sī旧jiù图tú,刊kān其qí大dà小xiǎo,正zhèng彼bǐ疏shū密mì,依yī准zhǔn三sān家jiā星xīng位wèi,以yǐ为wéi盖gài图tú。旁páng摛chī始shǐ分fēn,甄zhēn表biǎo常cháng度dù,并bìng具jù赤chì黄huáng二èr道dào,内nèi外wài两liǎng规guī。悬xuán象xiàng著zhù明míng,缠chán离lí攸yōu次cì,星xīng之zhī隐yǐn显xiǎn,天tiān汉hàn昭zhāo回huí,宛wǎn若ruò穹qióng苍cāng,将jiāng为wèi正zhèng范fàn。以yǐ坟fén为wèi太tài史shǐ令lìng。坟fén博bó考kǎo经jīng书shū,勤qín于yú教jiào习xí,自zì此cǐ太tài史shǐ观guān生shēng,始shǐ能néng识shí天tiān官guān。炀yáng帝dì又yòu遣qiǎn宫gōng人rén四sì十shí人rén,就jiù太tài史shǐ局jú,别bié诏zhào袁yuán充chōng,教jiào以yǐ星xīng气qì,业yè成chéng者zhě进jìn内nèi,以yǐ参cān占zhàn验yàn云yún。史shǐ臣chén于yú观guān台tái访fǎng浑hún仪yí,见jiàn元yuán魏wèi太tài史shǐ令lìng晁cháo崇chóng所suǒ造zào者zhě,以yǐ铁tiě为wèi之zhī,其qí规guī有yǒu六liù。其qí外wài四sì规guī常cháng定dìng,一yī象xiàng地dì形xíng,二èr象xiàng赤chì道dào,其qí余yú象xiàng二èr极jí。其qí内nèi二èr规guī,可kě以yǐ运yùn转zhuàn,用yòng合hé八bā尺chǐ之zhī管guǎn,以yǐ窥kuī星xīng度dù。周zhōu武wǔ帝dì平píng齐qí所suǒ得de。隋suí开kāi皇huáng三sān年nián,新xīn都dōu初chū成chéng,以yǐ置zhì诸zhū观guān台tái之zhī上shàng。大dà唐táng因yīn而ér用yòng焉yān。马mǎ迁qiān《天tiān官guān书shū》及jí班bān氏shì所suǒ载zài,妖yāo星xīng晕yūn珥ěr,云yún气qì虹hóng霓ní,存cún其qí大dà纲gāng,未wèi能néng备bèi举jǔ。自zì后hòu史shǐ官guān,更gèng无wú纪jì录lù。《春chūn秋qiū传chuán》曰yuē:“公gōng既jì视shì朔shuò,遂suì登dēng观guān台tái,凡fán分fēn至zhì启qǐ闭bì,必bì书shū云yún物wù。”神shén道dào司sī存cún,安ān可kě诬wū也yě!今jīn略lüè举jǔ其qí形xíng名míng占zhàn验yàn,次cì之zhī经jīng星xīng之zhī末mò云yún。

○天tiān体tǐ

古gǔ之zhī言yán天tiān者zhě有yǒu三sān家jiā,一yī曰yuē盖gài天tiān,二èr曰yuē宣xuān夜yè,三sān曰yuē浑hún天tiān。

盖gài天tiān之zhī说shuō,即jí《周zhōu髀bì》是shì也yě。其qí本běn庖páo牺xī氏shì立lì周zhōu天tiān历lì度dù,其qí所suǒ传chuán则zé周zhōu公gōng受shòu于yú殷yīn商shāng,周zhōu人rén志zhì之zhī,故gù曰yuē《周zhōu髀bì》。髀bì,股gǔ也yě;股gǔ者zhě,表biǎo也yě。其qí言yán天tiān似shì盖gài笠lì,地dì法fǎ覆fù槃pán,天tiān地dì各gè中zhōng高gāo外wài下xià。北běi极jí之zhī下xià,为wèi天tiān地dì之zhī中zhōng,其qí地dì最zuì高gāo,而ér滂pāng沲tuó四sì蕆chǎn,三sān光guāng隐yǐn映yìng,以yǐ为wéi昼zhòu夜yè。天tiān中zhōng高gāo于yú外wài衡héng冬dōng至zhì日rì之zhī所suǒ在zài六liù万wàn里lǐ,北běi极jí下xià地dì高gāo于yú外wài衡héng下xià地dì亦yì六liù万wàn里lǐ,外wài衡héng高gāo于yú北běi极jí下xià地dì二èr万wàn里lǐ。天tiān地dì隆lóng高gāo相xiāng从cóng,日rì去qù地dì恆héng八bā万wàn里lǐ。日rì丽lì天tiān而ér平píng转zhuǎn,分fēn冬dōng夏xià之zhī间jiàn日rì所suǒ行háng道dào为wèi七qī衡héng六liù间jiān。每měi衡héng周zhōu径jìng里lǐ数shù,各gè依yī算suàn术shù,用yòng句jù股gǔ重zhòng差chà,推tuī晷guǐ影yǐng极jí游yóu,以yǐ为wéi远yuǎn近jìn之zhī数shù,皆jiē得dé于yú表biǎo股gǔ也yě,故gù曰yuē《周zhōu髀bì》。

又yòu《周zhōu髀bì》家jiā云yún:“天tiān圆yuán如rú张zhāng盖gài,地dì方fāng如rú棋qí局jú。天tiān旁páng转zhuǎn如rú推tuī磨mò而ér左zuǒ行xíng,日rì月yuè右yòu行xíng,天tiān左zuǒ转zhuǎn,故gù日rì月yuè实shí东dōng行xíng,而ér天tiān牵qiān之zhī以yǐ西xī没méi。譬pì之zhī于yú蚁yǐ行xíng磨mó石shí之zhī上shàng,磨mó左zuǒ旋xuán而ér蚁yǐ右yòu去qù,磨mó疾jí而ér蚁yǐ迟chí,故gù不bù得dé不bù随suí磨mó以yǐ左zuǒ回huí焉yān。天tiān形xíng南nán高gāo而ér北běi下xià,日rì出chū高gāo故gù见jiàn,日rì入rù下xià故gù不bú见jiàn。天tiān之zhī居jū如rú倚yǐ盖gài,故gù极jí在zài人rén北běi,是shì其qí证zhèng也yě。极jí在zài天tiān之zhī中zhōng,而ér今jīn在zài人rén北běi,所suǒ以yǐ知zhī天tiān之zhī形xíng如rú倚yǐ盖gài也yě。日rì朝cháo出chū阴yīn中zhōng,暮mù入rù阴yīn中zhōng,阴yīn气qì暗àn冥míng,故gù从cóng没méi不bú见jiàn也yě。夏xià时shí阳yáng气qì多duō,阴yīn气qì少shǎo,阳yáng气qì光guāng明míng,与yǔ日rì同tóng晖huī,故gù日rì出chū即jí见jiàn,无wú蔽bì之zhī者zhě,故gù夏xià日rì长zhǎng也yě。冬dōng时shí阴yīn气qì多duō,阳yáng气qì少shǎo,阴yīn气qì暗àn冥míng,掩yǎn日rì之zhī光guāng,虽suī出chū犹yóu隐yǐn不bú见jiàn,故gù冬dōng日rì短duǎn也yě。”

汉hàn末mò,扬yáng子zi云yún难nán盖gài天tiān八bā事shì,以yǐ通tōng浑hún天tiān。其qí一yī云yún:“日rì之zhī东dōng行xíng,循xún黄huáng道dào。昼zhòu夜yè中zhōng规guī,牵qiān牛niú距jù北běi极jí南nán百bǎi一yī十shí度dù,东dōng井jǐng距jù北běi极jí南nán七qī十shí度dù,并bìng百bǎi八bā十shí度dù。周zhōu三sān径jìng一yī,二èr十shí八bā宿xiù周zhōu天tiān当dāng五wǔ百bǎi四sì十shí度dù,今jīn三sān百bǎi六liù十shí度dù,何hé也yě?”其qí二èr曰yuē:“春chūn秋qiū分fēn之zhī日rì正zhèng出chū在zài卯mǎo,入rù在zài酉yǒu,而ér昼zhòu漏lòu五wǔ十shí刻kè。即jí天tiān盖gài转zhuǎn,夜yè当dāng倍bèi昼zhòu。今jīn夜yè亦yì五wǔ十shí刻kè,何hé也yě?”其qí三sān曰yuē:“日rì入rù而ér星xīng见jiàn,日rì出chū而ér不bú见jiàn,即jí斗dòu下xià见jiàn日rì六liù月yuè,不bú见jiàn日rì六liù月yuè。北běi斗dǒu亦yì当dāng见jiàn六liù月yuè,不bú见jiàn六liù月yuè。今jīn夜yè常cháng见jiàn,何hé也yě?”其qí四sì曰yuē:“以yǐ盖gài图tú视shì天tiān河hé,起qǐ斗dòu而ér东dōng入rù狼láng弧hú间jiān,曲qū如rú轮lún。今jīn视shì天tiān河hé直zhí如rú绳shéng,何hé也yě?”其qí五wǔ曰yuē:“周zhōu天tiān二èr十shí八bā宿xiù,以yǐ盖gài图tú视shì天tiān,星xīng见jiàn者zhě当dāng少shǎo,不bú见jiàn者zhě当dāng多duō。今jīn见jiàn与yǔ不bú见jiàn等děng,何hé出chū入rù无wú冬dōng夏xià,而ér两liǎng宿sù十shí四sì星xīng当dāng见jiàn,不bù以yǐ日rì长cháng短duǎn故gù见jiàn有yǒu多duō少shǎo,何hé也yě?”其qí六liù曰yuē:“天tiān至zhì高gāo也yě,地dì至zhì卑bēi也yě。日rì托tuō天tiān而ér旋xuán,可kě谓wèi至zhì高gāo矣yǐ。纵zòng人rén目mù可kě夺duó,水shuǐ与yǔ影yǐng不bù可kě夺duó也yě。今jīn从cóng高gāo山shān上shàng,以yǐ水shuǐ望wàng日rì,日rì出chū水shuǐ下xià,影yǐng上shàng行háng,何hé也yě?”其qí七qī曰yuē:“视shì物wù近jìn则zé大dà,远yuǎn则zé小xiǎo。今jīn日rì与yǔ北běi斗dǒu,近jìn我wǒ而ér小xiǎo,远yuǎn我wǒ而ér大dà,何hé也yě?”其qí八bā曰yuē:“视shì盖gài与yǔ车chē辐fú间jiān,近jìn杠gāng毂gǔ即jí密mì,益yì远yuǎn益yì疏shū。今jīn北běi极jí为wèi天tiān杠gāng毂gǔ,二èr十shí八bā宿xiù为wèi天tiān辐fú。以yǐ星xīng度dù度dù天tiān,南nán方fāng次cì地dì星xīng间jiān当dāng数shù倍bèi。今jīn交jiāo密mì,何hé也yě?”其qí后hòu桓huán谭tán、郑zhèng玄xuán、蔡cài邕yōng、陆lù绩jì,各gè陈chén《周zhōu髀bì》考kǎo验yàn天tiān状zhuàng,多duō有yǒu所suǒ违wéi。逮dǎi梁liáng武wǔ帝dì于yú长cháng春chūn殿diàn讲jiǎng义yì,另lìng拟nǐ天tiān体tǐ,全quán同tóng《周zhōu髀bì》之zhī文wén,盖gài立lì新xīn意yì,以yǐ排pái浑hún天tiān之zhī论lùn而ér已yǐ。

宣xuān夜yè之zhī书shū,绝jué无wú师shī法fǎ。唯wéi汉hàn秘mì书shū郎láng郗xī萌méng记jì先xiān师shī相xiāng传chuán云yún:“天tiān了liǎo无wú质zhì,仰yǎng而ér瞻zhān之zhī,高gāo远yuǎn无wú极jí,眼yǎn瞀mào精jīng绝jué,故gù苍cāng苍cāng然rán也yě。譬pì之zhī旁páng望wàng远yuǎn道dào之zhī黄huáng山shān而ér皆jiē青qīng,俯fǔ察chá千qiān仞rèn之zhī深shēn谷gǔ而ér窈yǎo黑hēi,夫fū青qīng非fēi真zhēn色sè,而ér黑hēi非fēi有yǒu体tǐ也yě。日rì月yuè众zhòng星xīng,自zì然rán浮fú生shēng虚xū空kōng之zhī中zhōng,其qí行xíng其qí止zhǐ,皆jiē须xū气qì焉yān。是shì以yǐ七qī曜yào或huò逝shì或huò住zhù,或huò顺shùn或huò逆nì,伏fú见jiàn无wú常cháng,进jìn退tuì不bù同tóng,由yóu乎hū无wú所suǒ根gēn系xì,故gù各gè异yì也yě。故gù辰chén极jí常cháng居jū其qí所suǒ,而ér北běi斗dǒu不bù与yǔ众zhòng星xīng西xī没méi也yě。”

晋jìn成chéng帝dì咸xián康kāng中zhōng,会huì稽jī虞yú喜xǐ因yīn宣xuān夜yè之zhī说shuō,作zuò《安ān天tiān论lùn》,以yǐ为wéi“天tiān高gāo穷qióng于yú无wú穷qióng,地dì深shēn测cè于yú不bù测cè。天tiān确què乎hū在zài上shàng,有yǒu常cháng安ān之zhī形xíng,地dì魄pò焉yān在zài下xià,有yǒu居jū静jìng之zhī体tǐ,当dāng相xiāng覆fù冒mào,方fāng则zé俱jù方fāng,圆yuán则zé俱jù圆yuán,无wú方fāng圆yuán不bù同tóng之zhī义yì也yě。其qí光guāng曜yào布bù列liè,各gè自zì运yùn行xíng,犹yóu江jiāng海hǎi之zhī有yǒu潮cháo汐xī,万wàn品pǐn之zhī有yǒu行xíng藏cáng也yě。”葛gé洪hóng闻wén而ér讥jī之zhī曰yuē:“苟gǒu辰chén宿sù不bù丽lì于yú天tiān,天tiān为wèi无wú用yòng,便biàn可kě言yán无wú。何hé必bì夏xià云yún有yǒu之zhī而ér不bù动dòng乎hū?”由yóu此cǐ而ér谈tán,葛gé洪hóng可kě谓wèi知zhī言yán之zhī选xuǎn也yě。喜xǐ族zú祖zǔ河hé间jiān相xiāng耸sǒng,又yòu立lì《穹qióng天tiān论lùn》云yún:“天tiān形xíng穹qióng隆lóng如rú鸡jī子zi幕mù,其qí际jì周zhōu接jiē四sì海hǎi之zhī表biǎo,浮fú乎hū元yuán气qì之zhī上shàng。譬pì如rú覆fù奁lián以yǐ抑yì水shuǐ而ér不bù没méi者zhě,气qì充chōng其qí中zhōng故gù也yě。日rì绕rào辰chén极jí,没méi西xī还hái东dōng,而ér不bù出chū入rù地dì中zhōng。天tiān之zhī有yǒu极jí,犹yóu盖gài之zhī有yǒu斗dòu也yě。天tiān北běi下xià于yú地dì三sān十shí度dù,极jí之zhī倾qīng在zài地dì卯mǎo酉yǒu之zhī北běi亦yì三sān十shí度dù。人rén在zài卯mǎo酉yǒu之zhī南nán十shí余yú万wàn里lǐ,故gù斗dòu极jí之zhī下xià,不bù为wèi地dì中zhōng,当dāng对duì天tiān地dì卯mǎo酉yǒu之zhī位wèi耳ěr。日rì行xíng黄huáng道dào绕rào极jí。极jí北běi去qù黄huáng道dào百bǎi一yī十shí五wǔ度dù,南nán去qù黄huáng道dào六liù十shí七qī度dù,二èr至zhì之zhī所suǒ舍shě,以yǐ为wéi长cháng短duǎn也yě。”吴wú太tài常cháng姚yáo信xìn,造zào《昕xīn天tiān论lùn》云yún:“人rén为wéi灵líng虫chóng,形xíng最zuì似shì天tiān。今jīn人rén颐yí前qián侈chǐ临lín胸xiōng,而ér项xiàng不bù能néng覆fù背bèi。近jìn取qǔ诸zhū身shēn,故gù知zhī天tiān之zhī体tǐ,南nán低dī入rù地dì,北běi则zé偏piān高gāo也yě。又yòu冬dōng至zhì极jí低dī,而ér天tiān运yùn近jìn南nán,故gù日rì去qù人rén远yuǎn,而ér斗dòu去qù人rén近jìn,北běi天tiān气qì至zhì,故gù水shuǐ寒hán也yě。夏xià至zhì极jí起qǐ,而ér天tiān运yùn近jìn北běi,而ér斗dòu去qù人rén远yuǎn,日rì去qù人rén近jìn,南nán天tiān气qì至zhì,故gù蒸zhēng热rè也yě。极jí之zhī高gāo时shí,日rì行xíng地dì中zhōng浅qiǎn,故gù夜yè短duǎn;天tiān去qù地dì高gāo,故gù昼zhòu长zhǎng也yě。极jí之zhī低dī时shí,日rì行xíng地dì中zhōng深shēn,故gù夜yè长zhǎng;天tiān去qù地dì下xià,故gù昼zhòu短duǎn也yě。”自zì虞yú喜xǐ、虞yú耸sǒng、姚yáo信xìn,皆jiē好hào奇qí徇xùn异yì之zhī说shuō,非fēi极jí数shù谈tán天tiān者zhě也yě。

前qián儒rú旧jiù说shuō,天tiān地dì之zhī体tǐ,状zhuàng如rú鸟niǎo卵luǎn,天tiān包bāo地dì外wài,犹yóu壳ké之zhī裹guǒ黄huáng,周zhōu旋xuán无wú端duān,其qí形xíng浑hún浑hún然rán,故gù曰yuē浑hún天tiān。又yòu曰yuē:“天tiān表biǎo里lǐ有yǒu水shuǐ,两liǎng仪yí转zhuǎn运yùn,各gè乘chéng气qì而ér浮fú,载zài水shuǐ而ér行xíng。”汉hàn王wáng仲zhòng任rèn,据jù盖gài天tiān之zhī说shuō以yǐ驳bó浑hún仪yí,云yún:“旧jiù说shuō,天tiān转zhuǎn从cóng地dì下xià过guò。今jīn掘jué地dì一yī丈zhàng辄zhé有yǒu水shuǐ,天tiān何hé得dé从cóng水shuǐ中zhōng行háng乎hū?甚shèn不bù然rán也yě。日rì随suí天tiān而ér转zhuǎn,非fēi入rù地dì。夫fū人rén目mù所suǒ望wàng,不bù过guò十shí里lǐ,天tiān地dì合hé矣yǐ。实shí非fēi合hé也yě,远yuǎn使shǐ然rán耳ěr。今jīn视shì日rì入rù,非fēi入rù也yě,亦yì远yuǎn耳ěr。当dāng日rì入rù西xī方fāng之zhī时shí,其qí下xià之zhī人rén亦yì将jiāng谓wèi之zhī为wèi中zhōng也yě。四sì方fāng之zhī人rén,各gè以yǐ其qí近jìn者zhě为wèi出chū,远yuǎn者zhě为wèi入rù矣yǐ。何hé以yǐ明míng之zhī?今jīn试shì使shǐ一yī人rén把bǎ大dà炬jù火huǒ,夜yè行xíng于yú平píng地dì,去qù人rén十shí里lǐ,火huǒ光guāng灭miè矣yǐ。非fēi火huǒ灭miè也yě,远yuǎn使shǐ然rán耳ěr。今jīn日rì西xī转zhuǎn不bù复fù见jiàn,是shì火huǒ灭miè之zhī类lèi也yě。日rì月yuè不bù圆yuán也yě,望wàng视shì之zhī所suǒ以yǐ圆yuán者zhě,去qù人rén远yuǎn也yě。夫fū日rì,火huǒ之zhī精jīng也yě;月yuè,水shuǐ之zhī精jīng也yě。水shuǐ火huǒ在zài地dì不bù圆yuán,在zài天tiān何hé故gù圆yuán?”丹dān阳yáng葛gé洪hóng释shì之zhī曰yuē:

《浑hún天tiān仪yí注zhù》云yún:“天tiān如rú鸡jī子zi,地dì如rú中zhōng黄huáng,孤gū居jū于yú天tiān内nèi,天tiān大dà而ér地dì小xiǎo。天tiān表biǎo里lǐ有yǒu水shuǐ,天tiān地dì各gè乘chéng气qì而ér立lì,载zài水shuǐ而ér行xíng。周zhōu天tiān三sān百bǎi六liù十shí五wǔ度dù四sì分fēn度dù之zhī一yī,又yòu中zhōng分fēn之zhī,则zé半bàn覆fù地dì上shàng,半bàn绕rào地dì下xià,故gù二èr十shí八bā宿xiù半bàn见jiàn半bàn隐yǐn。天tiān转zhuǎn如rú车chē毂gǔ之zhī运yùn也yě。”诸zhū论lùn天tiān者zhě虽suī多duō,然rán精jīng于yú阴yīn阳yáng者zhě少shǎo。张zhāng平píng子zi、陆lù公gōng纪jì之zhī徒tú,咸xián以yǐ为wéi推tuī步bù七qī曜yào之zhī道dào,以yǐ度dù历lì象xiàng昏hūn明míng之zhī证zhèng候hòu,校xiào以yǐ四sì八bā之zhī气qì,考kǎo以yǐ漏lòu刻kè之zhī分fēn,占zhàn咎jiù影yǐng之zhī往wǎng来lái,求qiú形xíng验yàn于yú事shì情qíng,莫mò密mì于yú浑hún象xiàng也yě。张zhāng平píng子zi既jì作zuò铜tóng浑hún天tiān仪yí,于yú密mì室shì中zhōng,以yǐ漏lòu水shuǐ转zhuǎn之zhī,与yǔ天tiān皆jiē合hé如rú符fú契qì也yě。崔cuī子zi玉yù为wèi其qí碑bēi铭míng曰yuē:“数shù术shù穷qióng天tiān地dì,制zhì作zuò侔móu造zào化huà。高gāo才cái伟wěi艺yì,与yǔ神shén合hé契qì。”盖gài由yóu于yú平píng子zi浑hún仪yí及jí地dì动dòng仪yí之zhī有yǒu验yàn故gù也yě。若ruò天tiān果guǒ如rú浑hún者zhě,则zé天tiān之zhī出chū入rù,行xíng于yú水shuǐ中zhōng,为wèi必bì然rán矣yǐ。故gù《黄huáng帝dì书shū》曰yuē:“天tiān在zài地dì外wài,水shuǐ在zài天tiān外wài。水shuǐ浮fú天tiān而ér载zài地dì者zhě也yě。”又yòu《易yì》曰yuē:“时shí乘chéng六liù龙lóng。”夫fū阳yáng爻yáo称chēng龙lóng,龙lóng者zhě居jū水shuǐ之zhī物wù,以yǐ喻yù天tiān。天tiān阳yáng物wù也yě,又yòu出chū入rù水shuǐ中zhōng,与yǔ龙lóng相xiāng似sì,故gù比bǐ以yǐ龙lóng也yě。圣shèng人rén仰yǎng观guān俯fǔ察chá,审shěn其qí如rú此cǐ。故gù《晋jìn》卦guà坤kūn上shàng离lí下xià,以yǐ证zhèng日rì出chū于yú地dì也yě。又yòu《明míng夷yí》之zhī卦guà离lí下xià坤kūn上shàng,以yǐ证zhèng日rì入rù于yú地dì也yě。又yòu《需xū》卦guà乾qián下xià坎kǎn上shàng,此cǐ亦yì天tiān入rù水shuǐ中zhōng之zhī象xiàng也yě。天tiān为wèi金jīn,金jīn水shuǐ相xiāng生shēng之zhī物wù也yě。天tiān出chū入rù水shuǐ中zhōng,当dāng有yǒu何hé损sǔn,而ér谓wèi为wèi不bù可kě乎hū?然rán则zé天tiān之zhī出chū入rù水shuǐ中zhōng,无wú复fù疑yí矣yǐ。

又yòu今jīn视shì诸zhū星xīng出chū于yú东dōng者zhě,初chū但dàn去qù地dì小xiǎo许xǔ耳ěr。渐jiàn而ér西xī行xíng,先xiān经jīng人rén上shàng,后hòu遂suì转zhuǎn西xī而ér下xià焉yān,不bù旁páng旋xuán也yě。其qí先xiān在zài西xī之zhī星xīng,亦yì稍shāo下xià而ér没méi,无wú北běi转zhuǎn者zhě。日rì之zhī出chū入rù亦yì然rán。若ruò谓wèi天tiān磨mó石shí转zhuǎn者zhě,众zhòng星xīng日rì月yuè,宜yí随suí天tiān而ér回huí,初chū在zài于yú东dōng,次cì经jīng于yú南nán,次cì到dào于yú西xī,次cì及jí于yú北běi,而ér复fù还hái于yú东dōng,不bù应yīng横héng过guò去qù也yě。今jīn日rì出chū于yú东dōng,冉rǎn冉rǎn转zhuǎn上shàng,及jí其qí入rù西xī,亦yì复fù渐jiàn渐jiàn稍shāo下xià,都dōu不bù绕rào边biān北běi去qù。了liǎo了liǎo如rú此cǐ,王wáng生shēng必bì固gù谓wèi为wèi不bù然rán者zhě,疏shū矣yǐ。今jīn日rì径jìng千qiān里lǐ,其qí中zhōng足zú以yǐ当dāng小xiǎo星xīng之zhī数shù十shí也yě。若ruò日rì以yǐ转zhuǎn远yuǎn之zhī故gù,但dàn当dāng光guāng曜yào不bù能néng复fù来lái照zhào及jí人rén耳ěr,宜yí犹yóu望wàng见jiàn其qí体tǐ,不bù应yīng都dōu失shī其qí所suǒ在zài也yě。日rì光guāng既jì盛shèng,其qí体tǐ又yòu大dà于yú星xīng。今jīn见jiàn极jí北běi之zhī星xīng,而ér不bú见jiàn日rì之zhī在zài北běi者zhě,明míng其qí不bù北běi行xíng也yě。若ruò日rì以yǐ转zhuǎn远yuǎn之zhī故gù,不bù复fù可kě见jiàn,其qí比bǐ入rù之zhī间jiān,应yīng当dāng稍shāo小xiǎo。而ér日rì方fāng入rù之zhī时shí,反fǎn乃nǎi更gèng大dà,此cǐ非fēi转zhuǎn远yuǎn之zhī徵zhēng也yě。王wáng生shēng以yǐ火huǒ炬jù喻yù日rì,吾wú亦yì将jiāng借jiè子zi之zhī矛máo,以yǐ刺cì子zi之zhī盾dùn焉yān。把bǎ火huǒ之zhī人rén,去qù人rén转zhuǎn远yuǎn,其qí光guāng转zhuǎn微wēi,而ér日rì月yuè自zì出chū至zhì入rù,不bù渐jiàn小xiǎo也yě。王wáng生shēng以yǐ火huǒ喻yù之zhī,谬miù矣yǐ。又yòu日rì之zhī入rù西xī方fāng,视shì之zhī稍shāo稍shāo去qù,初chū尚shàng有yǒu半bàn,如rú横héng破pò镜jìng之zhī状zhuàng,须xū臾yú沦lún没mò矣yǐ。若ruò如rú王wáng生shēng之zhī言yán,日rì转zhuǎn北běi去qù者zhě,其qí北běi都dōu没méi之zhī顷qǐng,宜yí先xiān如rú竖shù破pò镜jìng之zhī状zhuàng,不bù应yīng如rú横héng破pò镜jìng也yě。如rú此cǐ言yán之zhī,日rì入rù北běi方fāng,不bù亦yì孤gū孑jié乎hū?又yòu月yuè之zhī光guāng微wēi,不bù及jí日rì远yuǎn矣yǐ。月yuè盛shèng之zhī时shí,虽suī有yǒu重zhòng云yún蔽bì之zhī,不bú见jiàn月yuè体tǐ,而ér夕xī犹yóu朗lǎng然rán,是shì月yuè光guāng犹yóu从cóng云yún中zhōng而ér照zhào外wài也yě。日rì若ruò绕rào西xī及jí北běi者zhě,其qí光guāng故gù应yīng如rú月yuè在zài云yún中zhōng之zhī状zhuàng,不bù得dé夜yè便biàn大dà暗àn也yě。又yòu日rì入rù则zé星xīng月yuè出chū焉yān。明míng知zhī天tiān以yǐ日rì月yuè分fēn主zhǔ昼zhòu夜yè,相xiāng代dài而ér照zhào也yě。若ruò日rì常cháng出chū者zhě,不bù应yīng日rì亦yì入rù而ér星xīng月yuè出chū也yě。

又yòu案àn河hé、洛luò之zhī文wén,皆jiē云yún水shuǐ火huǒ者zhě,阴yīn阳yáng之zhī余yú气qì也yě。夫fū言yán余yú气qì,则zé不bù能néng生shēng日rì月yuè可kě知zhī也yě,顾gù当dāng言yán日rì精jīng生shēng火huǒ者zhě可kě耳ěr。若ruò水shuǐ火huǒ是shì日rì月yuè所suǒ生shēng,则zé亦yì何hé得dé尽jǐn如rú日rì月yuè之zhī圆yuán乎hū?今jīn火huǒ出chū于yú阳yáng燧suì,阳yáng燧suì圆yuán而ér火huǒ不bù圆yuán也yě。水shuǐ出chū于yú方fāng诸zhū,方fāng诸zhū方fāng而ér水shuǐ不bù方fāng也yě。又yòu阳yáng燧suì可kě以yǐ取qǔ火huǒ于yú日rì,而ér无wú取qǔ日rì于yú火huǒ之zhī理lǐ,此cǐ则zé日rì精jīng之zhī生shēng火huǒ明míng矣yǐ。方fāng诸zhū可kě以yǐ取qǔ水shuǐ于yú月yuè,无wú取qǔ月yuè于yú水shuǐ之zhī道dào,此cǐ则zé月yuè精jīng之zhī生shēng水shuǐ了le矣yǐ。王wáng生shēng又yòu云yún:“远yuǎn故gù视shì之zhī圆yuán。”若ruò审shěn然rán者zhě,月yuè初chū生shēng之zhī时shí及jí既jì亏kuī之zhī后hòu,何hé以yǐ视shì之zhī不bù圆yuán乎hū?而ér日rì食shí,或huò上shàng或huò下xià,从cóng侧cè而ér起qǐ,或huò如rú钩gōu至zhì尽jǐn。若ruò远yuǎn视shì见jiàn圆yuán,不bù宜yí见jiàn其qí残cán缺quē左zuǒ右yòu所suǒ起qǐ也yě。此cǐ则zé浑hún天tiān之zhī体tǐ,信xìn而ér有yǒu徵zhēng矣yǐ。

宋sòng何hé承chéng天tiān论lùn浑hún天tiān象xiàng体tǐ曰yuē:“详xiáng寻xún前qián说shuō,因yīn观guān浑hún仪yí,研yán求qiú其qí意yì,有yǒu悟wù天tiān形xíng正zhèng圆yuán,而ér水shuǐ居jū其qí半bàn,地dì中zhōng高gāo外wài卑bēi,水shuǐ周zhōu其qí下xià。言yán四sì方fāng者zhě,东dōng曰yuē昜yáng谷gǔ,日rì之zhī所suǒ出chū,西xī曰yuē濛méng汜sì,日rì之zhī所suǒ入rù。《庄zhuāng子zi》又yòu云yún:‘北běi溟míng有yǒu鱼yú,化huà而ér为wèi鸟niǎo,将jiāng徙xǐ于yú南nán溟míng。’斯sī亦yì古gǔ之zhī遗yí记jì,四sì方fāng皆jiē水shuǐ证zhèng也yě。四sì方fāng皆jiē水shuǐ,谓wèi之zhī四sì海hǎi。凡fán五wǔ行xíng相xiāng生shēng,水shuǐ生shēng于yú金jīn。是shì故gù百bǎi川chuān发fā源yuán,皆jiē自zì山shān出chū,由yóu高gāo趣qù下xià,归guī注zhù于yú海hǎi。日rì为wèi阳yáng精jīng,光guāng曜yào炎yán炽chì,一yī夜yè入rù水shuǐ,所suǒ经jīng焦jiāo竭jié。百bǎi川chuān归guī注zhù,足zú以yǐ相xiāng补bǔ,故gù旱hàn不bù为wèi减jiǎn,浸jìn不bù为wèi益yì。”又yòu云yún:“周zhōu天tiān三sān百bǎi六liù十shí五wǔ度dù、三sān百bǎi四sì分fēn之zhī七qī十shí五wǔ。天tiān常cháng西xī转zhuǎn,一yī日rì一yī夜yè,过guò周zhōu一yí度dù。南nán北běi二èr极jí,相xiāng去qù一yì百bǎi一yī十shí六liù度dù、三sān百bǎi四sì分fēn度dù之zhī六liù十shí五wǔ强qiáng,即jí天tiān经jīng也yě。黄huáng道dào袤mào带dài赤chì道dào,春chūn分fēn交jiāo于yú奎kuí七qī度dù,秋qiū分fēn交jiāo于yú轸zhěn十shí五wǔ度dù,冬dōng至zhì斗dòu十shí四sì度dù半bàn强qiáng,夏xià至zhì井jǐng十shí六liù度dù半bàn。从cóng北běi极jí扶fú天tiān而ér南nán五wǔ十shí五wǔ度dù强qiáng,则zé居jū天tiān四sì维wéi之zhī中zhōng,最zuì高gāo处chù也yě,即jí天tiān顶dǐng也yě。其qí下xià则zé地dì中zhōng也yě。”自zì外wài与yǔ王wáng蕃fān大dà同tóng。王wáng蕃fān《浑hún天tiān说shuō》,具jù于yú《晋jìn史shǐ》。

旧jiù说shuō浑hún天tiān者zhě,以yǐ日rì月yuè星xīng辰chén,不bù问wèn春chūn秋qiū冬dōng夏xià,昼zhòu夜yè晨chén昏hūn,上shàng下xià去qù地dì中zhōng皆jiē同tóng,无wú远yuǎn近jìn。《列liè子zi》曰yuē:“孔kǒng子zi东dōng游yóu,见jiàn两liǎng小xiǎo兒ér斗dòu。问wèn其qí故gù,一yī小xiǎo兒ér曰yuē:‘我wǒ以yǐ日rì始shǐ出chū去qù人rén近jìn,而ér日rì中zhōng时shí远yuǎn也yě。’一yī小xiǎo兒ér曰yuē:‘我wǒ以yǐ为wéi日rì初chū出chū远yuǎn,而ér日rì中zhōng时shí近jìn也yě。’言yán初chū出chū近jìn者zhě曰yuē:‘日rì初chū出chū,大dà如rú车chē盖gài,及jí其qí日rì中zhōng,裁cái如rú盘pán盖gài。此cǐ不bù为wèi远yuǎn者zhě小xiǎo,近jìn者zhě大dà乎hū?’言yán日rì初chū出chū远yuǎn者zhě曰yuē:‘日rì初chū出chū时shí,沧cāng沧cāng凉liáng凉liáng,及jí其qí中zhōng时shí,热rè如rú探tàn汤tāng。此cǐ不bù为wèi近jìn者zhě热rè,远yuǎn者zhě凉liáng乎hū?’”

桓huán谭tán《新xīn论lùn》云yún:“汉hàn长zhǎng水shuǐ校xiào尉wèi平píng陵líng关guān子zi阳yáng,以yǐ为wéi日rì之zhī去qù人rén,上shàng方fāng远yuǎn而ér四sì傍bàng近jìn。何hé以yǐ知zhī之zhī?星xīng宿xiù昏hūn时shí出chū东dōng方fāng,其qí间jiān甚shèn疏shū,相xiāng离lí丈zhàng余yú。及jí夜yè半bàn在zài上shàng方fāng,视shì之zhī甚shèn数shù,相xiāng离lí一yī二èr尺chǐ。以yǐ准zhǔn度dù望wàng之zhī,逾yú益yì明míng白bái,故gù知zhī天tiān上shàng之zhī远yuǎn于yú傍bàng也yě。日rì为wèi天tiān阳yáng,火huǒ为wèi地dì阳yáng。地dì阳yáng上shàng升shēng,天tiān阳yáng下xià降jiàng。今jīn置zhì火huǒ于yú地dì,从cóng傍bàng与yǔ上shàng,诊zhěn其qí热rè,远yuǎn近jìn殊shū不bù同tóng焉yān。日rì中zhōng正zhèng在zài上shàng,覆fù盖gài人rén,人rén当dàng天tiān阳yáng之zhī冲chōng,故gù热rè于yú始shǐ出chū时shí。又yòu新xīn从cóng太tài阴yīn中zhōng来lái,故gù复fù凉liáng于yú其qí西xī在zài桑sāng榆yú间jiān也yě。桓huán君jūn山shān曰yuē:子zi阳yáng之zhī言yán,岂qǐ其qí然rán乎hū?”

张zhāng衡héng《灵líng台tái》曰yuē:“日rì之zhī薄báo地dì,暗àn其qí明míng也yě。由yóu暗àn视shì明míng,明míng无wú所suǒ屈qū,是shì以yǐ望wàng之zhī若ruò大dà。方fāng其qí中zhōng,天tiān地dì同tóng明míng,明míng还hái自zì夺duó,故gù望wàng之zhī若ruò小xiǎo。火huǒ当dāng夜yè而ér扬yáng光guāng,在zài昼zhòu则zé不bù明míng也yě。月yuè之zhī于yú夜yè,与yǔ日rì同tóng而ér差chà微wēi。”

晋jìn著zhù作zuò郎láng阳yáng平píng束shù皙xī,字zì广guǎng微wēi,以yǐ为wéi傍bàng方fāng与yǔ上shàng方fāng等děng。傍bàng视shì则zé天tiān体tǐ存cún于yú侧cè,故gù日rì出chū时shí视shì日rì大dà也yě。日rì无wú小xiǎo大dà,而ér所suǒ存cún者zhě有yǒu伸shēn厌yàn。厌yàn而ér形xíng小xiǎo,伸shēn而ér体tǐ大dà,盖gài其qí理lǐ也yě。又yòu日rì始shǐ出chū时shí色sè白bái者zhě,虽suī大dà不bù甚shèn,始shǐ出chū时shí色sè赤chì者zhě,其qí大dà则zé甚shèn,此cǐ终zhōng以yǐ人rén目mù之zhī惑huò,无wú远yuǎn近jìn也yě。且qiě夫fū置zhì器qì广guǎng庭tíng,则zé函hán牛niú之zhī鼎dǐng如rú釜fǔ,堂táng崇chóng十shí仞rèn,则zé八bā尺chǐ之zhī人rén犹yóu短duǎn,物wù有yǒu陵líng之zhī,非fēi形xíng异yì也yě。夫fū物wù有yǒu惑huò心xīn,形xíng有yǒu乱luàn目mù,诚chéng非fēi断duàn疑yí定dìng理lǐ之zhī主zhǔ。故gù仰yǎng游yóu云yún以yǐ观guān月yuè,月yuè常cháng动dòng而ér云yún不bù移yí;乘chéng船chuán以yǐ涉shè水shuǐ,水shuǐ去qù而ér船chuán不bù徙xǐ矣yǐ。

姜jiāng岌jí云yún:“余yú以yǐ为wéi子zi阳yáng言yán天tiān阳yáng下xià降jiàng,日rì下xià热rè,束shù皙xī言yán天tiān体tǐ存cún于yú目mù,则zé日rì大dà,颇pǒ近jìn之zhī矣yǐ。浑hún天tiān之zhī体tǐ,圆yuán周zhōu之zhī径jìng,详xiáng之zhī于yú天tiān度dù,验yàn之zhī于yú晷guǐ影yǐng,而ér纷fēn然rán之zhī说shuō,由yóu人rén目mù也yě。参cān伐fá初chū出chū,在zài旁páng则zé其qí间jiān疏shū,在zài上shàng则zé其qí间jiān数shù。以yǐ浑hún检jiǎn之zhī,度dù则zé均jūn也yě。旁páng之zhī与yǔ上shàng,理lǐ无wú有yǒu殊shū也yě。夫fū日rì者zhě纯chún阳yáng之zhī精jīng也yě,光guāng明míng外wài曜yào,以yǐ眩xuàn人rén目mù,故gù人rén视shì日rì如rú小xiǎo。及jí其qí初chū出chū,地dì有yǒu游yóu气qì,以yǐ厌yàn日rì光guāng,不bù眩xuàn人rén目mù,即jí日rì赤chì而ér大dà也yě。无wú游yóu气qì则zé色sè白bái,大dà不bù甚shèn矣yǐ。地dì气qì不bù及jí天tiān,故gù一yī日rì之zhī中zhōng,晨chén夕xī日rì色sè赤chì,而ér中zhōng时shí日rì色sè白bái。地dì气qì上shàng升shēng,蒙méng蒙méng四sì合hé,与yǔ天tiān连lián者zhě,虽suī中zhōng时shí亦yì赤chì矣yǐ。日rì与yǔ火huǒ相xiāng类lèi,火huǒ则zé体tǐ赤chì而ér炎yán黄huáng,日rì赤chì宜yí矣yǐ。然rán日rì色sè赤chì者zhě,犹yóu火huǒ无wú炎yán也yě。光guāng衰shuāi失shī常cháng,则zé为wèi异yì矣yǐ。”

梁liáng奉fèng朝cháo请qǐng祖zǔ恆héng曰yuē:

自zì古gǔ论lùn天tiān者zhě多duō矣yǐ,而ér群qún氏shì纠jiū纷fēn,至zhì相xiāng非fēi毁huǐ。窃qiè览lǎn同tóng异yì,稽jī之zhī典diǎn经jīng,仰yǎng观guān辰chén极jí,傍bàng瞩zhǔ四sì维wéi,睹dǔ日rì月yuè之zhī升shēng降jiàng,察chá五wǔ星xīng之zhī见jiàn伏fú,校xiào之zhī以yǐ仪yí象xiàng,覆fù之zhī以yǐ晷guǐ漏lòu,则zé浑hún天tiān之zhī理lǐ,信xìn而ér有yǒu徵zhēng。辄zhé遗yí众zhòng说shuō,附fù浑hún仪yí云yún。《考kǎo灵líng曜yào》先xiān儒rú求qiú得dé天tiān地dì相xiāng去qù十shí七qī万wàn八bā千qiān五wǔ百bǎi里lǐ,以yǐ晷guǐ影yǐng验yàn之zhī,失shī于yú过guò多duō。既jì不bù显xiǎn求qiú之zhī术shù,而ér虚xū设shè其qí数shù,盖gài夸kuā诞dàn之zhī辞cí,宜yí非fēi圣shèng人rén之zhī旨zhǐ也yě。学xué者zhě多duō固gù其qí说shuō而ér未wèi之zhī革gé,岂qǐ不bù知zhī寻xún其qí理lǐ欤yú,抑yì未wèi能néng求qiú其qí数shù故gù也yě?王wáng蕃fān所suǒ考kǎo,校xiào之zhī前qián说shuō,不bù啻chì减jiǎn半bàn。虽suī非fēi揆kuí格gé所suǒ知zhī,而ér求qiú之zhī以yǐ理lǐ,诚chéng未wèi能néng遥yáo趣qù其qí实shí,盖gài近jìn密mì乎hū?辄zhé因yīn王wáng蕃fān天tiān高gāo数shù,以yǐ求qiú冬dōng至zhì、春chūn分fēn日rì高gāo及jí南nán戴dài日rì下xià去qù地dì中zhōng数shù。法fǎ,令lìng表biǎo高gāo八bā尺chǐ与yǔ冬dōng至zhì影yǐng长zhǎng一yī丈zhàng三sān尺chǐ,各gè自zì乘chéng,并bìng而ér开kāi方fāng除chú之zhī为wèi法fǎ。天tiān高gāo乘chéng表biǎo高gāo为wèi实shí,实shí如rú法fǎ,得dé四sì万wàn二èr千qiān六liù百bǎi五wǔ十shí八bā里lǐ有yǒu奇qí,即jí冬dōng至zhì日rì高gāo也yě。以yǐ天tiān高gāo乘chéng冬dōng至zhì影yǐng长zhǎng为wèi实shí,实shí如rú法fǎ,得dé六liù万wàn九jiǔ千qiān三sān百bǎi二èr十shí里lǐ有yǒu奇qí,即jí冬dōng至zhì南nán戴dài日rì下xià去qù地dì中zhōng数shù也yě。求qiú春chūn秋qiū分fēn数shù法fǎ,令lìng表biǎo高gāo及jí春chūn秋qiū分fēn影yǐng长zhǎng五wǔ尺chǐ三sān寸cùn九jiǔ分fēn,各gè自zì乘chéng,并bìng而ér开kāi方fāng除chú之zhī为wèi法fǎ。因yīn冬dōng至zhì日rì高gāo实shí,而ér以yǐ法fǎ除chú之zhī,得dé六liù万wàn七qī千qiān五wǔ百bǎi二èr里lǐ有yǒu奇qí,即jí春chūn秋qiū分fēn日rì高gāo也yě。以yǐ天tiān高gāo乘chéng春chūn秋qiū分fēn影yǐng长zhǎng实shí,实shí如rú法fǎ而ér一yī,得dé四sì万wàn五wǔ千qiān四sì百bǎi七qī十shí九jiǔ里lǐ有yǒu奇qí,即jí春chūn秋qiū分fēn南nán戴dài日rì下xià去qù地dì中zhōng数shù也yě。南nán戴dài日rì下xià,所suǒ谓wèi丹dān穴xué也yě。推tuī北běi极jí里lǐ数shù法fǎ,夜yè于yú地dì中zhōng表biǎo南nán,傅fù地dì遥yáo望wàng北běi辰chén纽niǔ星xīng之zhī末mò,令lìng与yǔ表biǎo端duān参cān合hé。以yǐ人rén目mù去qù表biǎo数shù及jí表biǎo高gāo各gè自zì乘chéng,并bìng而ér开kāi方fāng除chú之zhī为wèi法fǎ。天tiān高gāo乘chéng表biǎo高gāo数shù为wèi实shí,实shí如rú法fǎ而ér一yī,即jí北běi辰chén纽niǔ星xīng高gāo地dì数shù也yě。天tiān高gāo乘chéng人rén目mù去qù表biǎo为wèi实shí,实shí如rú法fǎ,即jí去qù北běi戴dài极jí下xià之zhī数shù也yě。北běi戴dài斗dòu极jí为wéi空kōng桐tóng。

日rì去qù赤chì道dào表biǎo里lǐ二èr十shí四sì度dù,远yuǎn寒hán近jìn暑shǔ而ér中zhōng和hé。二èr分fēn之zhī日rì,去qù天tiān顶dǐng三sān十shí六liù度dù。日rì去qù地dì中zhōng,四sì时shí同tóng度dù,而ér有yǒu寒hán暑shǔ者zhě,地dì气qì上shàng腾téng,天tiān气qì下xià降jiàng,故gù远yuǎn日rì下xià而ér寒hán,近jìn日rì下xià而ér暑shǔ,非fēi有yǒu远yuǎn近jìn也yě。犹yóu火huǒ居jū上shàng,虽suī远yuǎn而ér炎yán,在zài傍bàng,虽suī近jìn而ér微wēi。视shì日rì在zài傍bàng而ér大dà,居jū上shàng而ér小xiǎo者zhě,仰yǎng瞩zhǔ为wéi难nán,平píng观guān为wèi易yì也yě。由yóu视shì有yǒu夷yí险xiǎn,非fēi远yuǎn近jìn之zhī效xiào也yě。今jīn悬xuán珠zhū于yú百bǎi仞rèn之zhī上shàng,或huò置zhì之zhī于yú百bǎi仞rèn之zhī前qián,从cóng而ér观guān之zhī,则zé大dà小xiǎo殊shū矣yǐ。先xiān儒rú弗fú斯sī取qǔ验yàn,虚xū繁fán翰hàn墨mò,夷yí途tú顿dùn辔pèi,雄xióng辞cí析xī辩biàn,不bù亦yì迂yū哉zāi!今jīn大dà寒hán在zài冬dōng至zhì后hòu二èr气qì者zhě,寒hán积jī而ér未wèi消xiāo也yě。大dà暑shǔ在zài夏xià至zhì后hòu二èr气qì者zhě,暑shǔ积jī而ér未wèi歇xiē也yě。寒hán暑shǔ均jūn和hé,乃nǎi在zài春chūn秋qiū分fēn后hòu二èr气qì者zhě,寒hán暑shǔ积jī而ér未wèi平píng也yě。譬pì之zhī火huǒ始shǐ入rù室shì,而ér未wèi甚shèn温wēn,弗fú事shì加jiā薪xīn,久jiǔ而ér逾yú炽chì。既jì已yǐ迁qiān之zhī,犹yóu有yǒu余yú热rè也yě。

○浑hún天tiān仪yí

案àn《虞yú书shū》:“舜shùn在zài〔玑jī玉yù衡héng,以yǐ齐qí七qī政zhèng,”则zé《考kǎo灵líng曜yào》所suǒ谓wèi观guān玉yù仪yí之zhī游yóu,昏hūn明míng主zhǔ时shí,乃nǎi命mìng中zhòng星xīng者zhě也yě。〔玑jī中zhōng而ér星xīng未wèi中zhōng为wèi急jí,急jí则zé日rì过guò其qí度dù,月yuè不bù及jí其qí宿sù。〔玑jī未wèi中zhōng而ér星xīng中zhōng为wèi舒shū,舒shū则zé日rì不bù及jí其qí度dù,月yuè过guò其qí宿sù。〔玑jī中zhōng而ér星xīng中zhōng为wèi调diào,调diào则zé风fēng雨yǔ时shí,庶shù草cǎo蕃fān芜wú,而ér五wǔ谷gǔ登dēng,万wàn事shì康kāng也yě。所suǒ言yán〔玑jī者zhě,谓wèi浑hún天tiān仪yí也yě。故gù《春chūn秋qiū文wén耀yào钩gōu》云yún:“唐táng尧yáo即jí位wèi,羲xī、和hé立lì浑hún仪yí。”而ér先xiān儒rú或huò因yīn星xīng官guān书shū,北běi斗dǒu第dì二èr星xīng名míng旋xuán,第dì三sān星xīng名míng玑jī,第dì五wǔ星xīng名míng玉yù衡héng,仍réng七qī政zhèng之zhī言yán,即jí以yǐ为wéi北běi斗dǒu七qī星xīng。载zài笔bǐ之zhī官guān,莫mò之zhī或huò辨biàn。史shǐ迁qiān、班bān固gù,犹yóu且qiě致zhì疑yí。马mǎ季jì长zhǎng创chuàng谓wèi玑jī衡héng为wèi浑hún天tiān仪yí。郑zhèng玄xuán亦yì云yún;“其qí转zhuǎn运yùn者zhě为wèi玑jī,其qí持chí正zhèng者zhě为wèi衡héng,皆jiē以yǐ玉yù为wèi之zhī。七qī政zhèng者zhě,日rì月yuè五wǔ星xīng也yě。以yǐ玑jī衡héng视shì其qí行xíng度dù,以yǐ观guān天tiān意yì也yě。”故gù王wáng蕃fān云yún:“浑hún天tiān仪yí者zhě,羲xī、和hé之zhī旧jiù器qì,积jī代dài相xiāng传chuán,谓wèi之zhī玑jī衡héng。其qí为wèi用yòng也yě,以yǐ察chá三sān光guāng,以yǐ分fēn宿sù度dù者zhě也yě。又yòu有yǒu浑hún天tiān象xiàng者zhě,以yǐ著zhù天tiān体tǐ,以yǐ布bù星xīng辰chén。而ér浑hún象xiàng之zhī法fǎ,地dì当dāng在zài天tiān中zhōng,其qí势shì不bù便biàn,故gù反fǎn观guān其qí形xíng,地dì为wèi外wài匡kuāng,于yú已yǐ解jiě者zhě,无wú异yì在zài内nèi。诡guǐ状zhuàng殊shū体tǐ,而ér合hé于yú理lǐ,可kě谓wèi奇qí巧qiǎo。然rán斯sī二èr者zhě,以yǐ考kǎo于yú天tiān,盖gài密mì矣yǐ。”又yòu云yún:“古gǔ旧jiù浑hún象xiàng,以yǐ二èr分fēn为wèi一yí度dù,周zhōu七qī尺chǐ三sān寸cùn半bàn分fēn。而ér莫mò知zhī何hé代dài所suǒ造zào。”今jīn案àn虞yú喜xǐ云yún:“落là下xià闳hóng为wèi汉hàn孝xiào武wǔ帝dì于yú地dì中zhōng转zhuǎn浑hún天tiān,定dìng时shí节jié,作zuò《泰tài初chū历lì》。”或huò其qí所suǒ制zhì也yě。

汉hàn孝xiào和hé帝dì时shí,太tài史shǐ揆kuí候hòu,皆jiē以yǐ赤chì道dào仪yí,与yǔ天tiān度dù颇pǒ有yǒu进jìn退tuì。以yǐ问wèn典diǎn星xīng待dài诏zhào姚yáo崇chóng等děng,皆jiē曰yuē《星xīng图tú》有yǒu规guī法fǎ,日rì月yuè实shí从cóng黄huáng道dào。官guān无wú其qí器qì。至zhì永yǒng元yuán十shí五wǔ年nián,诏zhào左zuǒ中zhōng郎láng将jiāng贾jiǎ逵kuí乃nǎi始shǐ造zào太tài史shǐ黄huáng道dào铜tóng仪yí。至zhì桓huán帝dì延yán熹xī七qī年nián,太tài史shǐ令lìng张zhāng衡héng更gèng以yǐ铜tóng制zhì,以yǐ四sì分fēn为wéi一yí度dù,周zhōu天tiān一yī丈zhàng四sì尺chǐ六liù寸cùn一yī分fēn。亦yì于yú密mì室shì中zhōng以yǐ漏lòu水shuǐ转zhuǎn之zhī,令lìng司sī之zhī者zhě,闭bì户hù而ér唱chàng之zhī,以yǐ告gào灵líng台tái之zhī观guān天tiān者zhě。〔玑jī所suǒ加jiā,某mǒu星xīng始shǐ见jiàn,某mǒu星xīng已yǐ中zhōng,某mǒu星xīng今jīn没méi,皆jiē如rú合hé符fú。蕃fān以yǐ古gǔ制zhì局jú小xiǎo,以yǐ布bù星xīng辰chén,相xiāng去qù稠chóu概gài,不bù得dé了le察chá。张zhāng衡héng所suǒ作zuò,又yòu复fù伤shāng大dà,难nán可kě转zhuǎn移yí。蕃fān今jīn所suǒ作zuò,以yǐ三sān分fēn为wèi一yí度dù,周zhōu一yī丈zhàng九jiǔ寸cùn五wǔ分fēn、四sì分fēn分fēn之zhī三sān。长zhǎng古gǔ法fǎ三sān尺chǐ六liù寸cùn五wǔ分fēn、四sì分fēn分fēn之zhī一yī,减jiǎn衡héng法fǎ亦yì三sān尺chǐ六liù寸cùn五wǔ分fēn、四sì分fēn分fēn之zhī一yī。浑hún天tiān仪yí法fǎ,黄huáng赤chì道dào各gè广guǎng一yí度dù有yǒu半bàn。故gù今jīn所suǒ作zuò浑hún象xiàng,黄huáng赤chì道dào各gè广guǎng四sì分fēn半bàn,相xiāng去qù七qī寸cùn二èr分fēn。又yòu云yún“黄huáng赤chì二èr道dào,相xiāng共gòng交jiāo错cuò,其qí间jiān相xiāng去qù二èr十shí四sì度dù。以yǐ两liǎng仪yí准zhǔn之zhī,二èr道dào俱jù三sān百bǎi六liù十shí五wǔ度dù有yǒu奇qí。又yòu赤chì道dào见jiàn者zhě,常cháng一yì百bǎi八bā十shí二èr度dù半bàn强qiáng。又yòu南nán北běi考kǎo之zhī,天tiān见jiàn者zhě亦yì一yì百bǎi八bā十shí二èr度dù半bàn强qiáng。是shì以yǐ知zhī天tiān之zhī体tǐ圆yuán如rú弹dàn丸wán,南nán北běi极jí相xiāng去qù一yì百bǎi八bā十shí二èr度dù半bàn强qiáng也yě。而ér陆lù绩jì所suǒ作zuò浑hún象xiàng,形xíng如rú鸟niǎo卵luǎn,以yǐ施shī二èr道dào,不bù得dé如rú法fǎ。若ruò使shǐ二èr道dào同tóng规guī,则zé其qí间jiān相xiāng去qù不bù得dé满mǎn二èr十shí四sì度dù。若ruò令lìng相xiāng去qù二èr十shí四sì度dù,则zé黄huáng道dào当dāng长cháng于yú赤chì道dào。又yòu两liǎng极jí相xiāng去qù,不bù翅chì八bā十shí二èr度dù半bàn强qiáng。案àn绩jì说shuō云yún:‘天tiān东dōng西xī径jìng三sān十shí五wǔ万wàn七qī千qiān里lǐ,直zhí径jìng亦yì然rán。’则zé绩jì意yì亦yì以yǐ天tiān为wèi正zhèng圆yuán也yě。器qì与yǔ言yán谬miù,颇pǒ为wèi乖guāi僻pì。”然rán则zé浑hún天tiān仪yí者zhě,其qí制zhì有yǒu机jī有yǒu衡héng。既jì动dòng静jìng兼jiān状zhuàng,以yǐ效xiào二èr仪yí之zhī情qíng,又yòu周zhōu旋xuán衡héng管guǎn,用yòng考kǎo三sān光guāng之zhī分fēn。所suǒ以yǐ揆kuí正zhèng宿sù度dù,准zhǔn步bù盈yíng虚xū,求qiú古gǔ之zhī遗yí法fǎ也yě。则zé先xiān儒rú所suǒ言yán圆yuán规guī径jìng八bā尺chǐ,汉hàn候hòu台tái铜tóng仪yí,蔡cài邕yōng所suǒ欲yù寝qǐn伏fú其qí下xià者zhě是shì也yě。

梁liáng华huá林lín重zhòng云yún殿diàn前qián所suǒ置zhì铜tóng仪yí,其qí制zhì则zé有yǒu双shuāng环huán规guī相xiāng并bìng,间jiān相xiāng去qù三sān寸cùn许xǔ,正zhèng竖shù当dāng子zǐ午wǔ。其qí子zi午wǔ之zhī间jiān,应yīng南nán北běi极jí之zhī衡héng,各gè合hé而ér为wèi孔kǒng,以yǐ象xiàng南nán北běi枢shū。植zhí楗jiàn于yú前qián后hòu以yǐ属shǔ焉yān。又yòu有yǒu单dān横héng规guī,高gāo下xià正zhèng当dāng浑hún之zhī半bàn。皆jiē周zhōu市shì分fēn为wéi度dù数shù;署shǔ以yǐ维wéi辰chén之zhī位wèi,以yǐ象xiàng地dì。又yòu有yǒu单dān规guī,斜xié带dài南nán北běi之zhī中zhōng,与yǔ春chūn秋qiū二èr分fēn之zhī日rì道dào相xiāng应yìng。亦yì周zhōu匝zā分fēn为wéi度dù数shù,而ér署shǔ以yǐ维wéi辰chén,并bìng相xiāng连lián者zhě。属shǔ楗jiàn植zhí而ér不bù动dòng。其qí里lǐ又yòu有yǒu双shuāng规guī相xiāng并bìng,如rú外wài双shuāng规guī。内nèi径jìng八bā尺chǐ,周zhōu二èr丈zhàng四sì尺chǐ,而ér属shǔ双shuāng轴zhóu。轴zhóu两liǎng头tóu出chū规guī外wài各gè二èr寸cùn许xǔ,合hé两liǎng为wéi一yī。内nèi有yǒu孔kǒng,圆yuán径jìng二èr寸cùn许xǔ,南nán头tóu入rù地dì下xià,注zhù于yú外wài双shuāng规guī南nán枢shū孔kǒng中zhōng,以yǐ象xiàng南nán极jí。北běi头tóu出chū地dì上shàng,入rù于yú外wài双shuāng规guī北běi枢shū孔kǒng中zhōng,以yǐ象xiàng北běi极jí。其qí运yùn动dòng得dé东dōng西xī转zhuǎn,以yǐ象xiàng天tiān行xíng。其qí双shuāng轴zhóu之zhī间jiān,则zé置zhì衡héng,长zhǎng八bā尺chǐ,通tōng中zhōng有yǒu孔kǒng,圆yuán径jìng一yī寸cùn。当dāng衡héng之zhī半bàn,两liǎng边biān有yǒu关guān,各gè注zhù著zhù双shuāng轴zhóu。衡héng即jí随suí天tiān象xiàng东dōng西xī转zhuǎn运yùn,又yòu自zì于yú双shuāng轴zhóu间jiān得dé南nán北běi低dī仰yǎng。所suǒ以yǐ准zhǔn验yàn辰chén历lì,分fēn考kǎo次cì度dù,其qí于yú揆kuí测cè,唯wéi所suǒ欲yù为wéi之zhī者zhě也yě。检jiǎn其qí镌juān题tí,是shì伪wěi刘liú曜yào光guāng初chū六liù年nián,史shǐ官guān丞chéng南nán阳yáng孔kǒng挺tǐng所suǒ造zào,则zé古gǔ之zhī浑hún仪yí之zhī法fǎ者zhě也yě。而ér宋sòng御yù史shǐ中zhōng丞chéng何hé承chéng天tiān及jí太tài中zhōng大dà夫fū徐xú爰yuán,各gè著zhù《宋sòng史shǐ》,咸xián以yǐ为wéi即jí张zhāng衡héng所suǒ造zào。其qí仪yí略lüè举jǔ天tiān状zhuàng,而ér不bù缀zhuì经jīng星xīng七qī曜yào。魏wèi、晋jìn丧sāng乱luàn,沉chén没mò西xī戎róng。义yì熙xī十shí四sì年nián,宋sòng高gāo祖zǔ定dìng咸xián阳yáng得dé之zhī。梁liáng尚shàng书shū沈shěn约yuē著zhù《宋sòng史shǐ》,亦yì云yún然rán,皆jiē失shī之zhī远yuǎn矣yǐ。

后hòu魏wèi道dào武wǔ天tiān兴xīng初chū,命mìng太tài史shǐ令lìng晁cháo崇chóng修xiū浑hún仪yí,以yǐ观guān星xīng象xiàng。十shí有yǒu余yú载zài,至zhì明míng元yuán永yǒng兴xīng四sì年nián壬rén子zi,诏zhào造zào太tài史shǐ候hòu部bù铁tiě仪yí,以yǐ为wéi浑hún天tiān法fǎ,考kǎo〔玑jī之zhī正zhèng。其qí铭míng曰yuē;“于yú皇huáng大dà代dài,配pèi天tiān比bǐ祚zuò。赫hè赫hè明míng明míng,声shēng烈liè遐xiá布bù。爰yuán造zào兹zī器qì,考kǎo正zhèng宿sù度dù。贻yí法fǎ后hòu叶yè,永yǒng垂chuí典diǎn故gù。”其qí制zhì并bìng以yǐ铜tóng铁tiě,唯wéi志zhì星xīng度dù以yǐ银yín错cuò之zhī。南nán北běi柱zhù曲qū抱bào双shuāng规guī,东dōng西xī柱zhù直zhí立lì,下xià有yǒu十shí字zì水shuǐ平píng,以yǐ植zhí四sì柱zhù。十shí字zì之zhī上shàng,以yǐ龟guī负fù双shuāng规guī。其qí余yú皆jiē与yǔ刘liú曜yào仪yí大dà同tóng。即jí今jīn太tài史shǐ候hòu台tái所suǒ用yòng也yě。

○浑hún天tiān象xiàng

浑hún天tiān象xiàng者zhě,其qí制zhì有yǒu机jī而ér无wú衡héng,梁liáng末mò秘mì府fǔ有yǒu,以yǐ木mù为wèi之zhī。其qí圆yuán如rú丸wán,其qí大dà数shù围wéi。南nán北běi两liǎng头tóu有yǒu轴zhóu。遍biàn体tǐ布bù二èr十shí八bā宿xiù、三sān家jiā星xīng、黄huáng赤chì二èr道dào及jí天tiān汉hàn等děng。别bié为wèi横héng规guī环huán,以yǐ匡kuāng其qí外wài。高gāo下xià管guǎn之zhī,以yǐ象xiàng地dì。南nán轴zhóu头tóu入rù地dì,注zhù于yú南nán植zhí,以yǐ象xiàng南nán极jí。北běi轴zhóu头tóu出chū于yú地dì上shàng,注zhù于yú北běi植zhí,以yǐ象xiàng北běi极jí。正zhèng东dōng西xī运yùn转zhuàn。昏hūn明míng中zhōng星xīng,既jì其qí应yīng度dù,分fēn至zhì气qì节jié,亦yì验yàn,在zài不bù差chà而ér已yǐ。不bù如rú浑hún仪yí,别bié有yǒu衡héng管guǎn,测cè揆kuí日rì月yuè,分fēn步bù星xīng度dù者zhě也yě。吴wú太tài史shǐ令lìng陈chén苗miáo云yún:“先xiān贤xián制zhì木mù为wèi仪yí,名míng曰yuē浑hún天tiān。”即jí此cǐ之zhī谓wèi耶yé?由yóu斯sī而ér言yán,仪yí象xiàng二èr器qì,远yuǎn不bù相xiāng涉shè。则zé张zhāng衡héng所suǒ造zào,盖gài亦yì止zhǐ在zài浑hún象xiàng七qī曜yào,而ér何hé承chéng天tiān莫mò辨biàn仪yí象xiàng之zhī异yì,亦yì为wèi乖guāi失shī。

宋sòng文wén帝dì以yǐ元yuán嘉jiā十shí三sān年nián诏zhào太tài史shǐ更gèng造zào浑hún仪yí。太tài史shǐ令lìng钱qián乐lè之zhī依yī案àn旧jiù说shuō,采cǎi效xiào仪yí象xiàng,铸zhù铜tóng为wèi之zhī。五wǔ分fēn为wèi一yí度dù,径jìng六liù尺chǐ八bā分fēn少shǎo,周zhōu一yī丈zhàng八bā尺chǐ二èr寸cùn六liù分fēn少shǎo。地dì在zài天tiān内nèi,不bù动dòng。立lì黄huáng赤chì二èr道dào之zhī规guī,南nán北běi二èr极jí之zhī规guī,布bù列liè二èr十shí八bā宿xiù、北běi斗dǒu极jí星xīng。置zhì日rì月yuè五wǔ星xīng于yú黄huáng道dào上shàng。为wèi之zhī杠gāng轴zhóu,以yǐ象xiàng天tiān运yùn。昏hūn明míng中zhōng星xīng,与yǔ天tiān相xiāng符fú。梁liáng末mò,置zhì于yú文wén德dé殿diàn前qián。至zhì如rú斯sī制zhì,以yǐ为wéi浑hún仪yí,仪yí则zé内nèi阙quē衡héng管guǎn。以yǐ为wéi浑hún象xiàng,而ér地dì不bù在zài外wài。是shì参cān两liǎng法fǎ,别bié为wèi一yī体tǐ。就jiù器qì用yòng而ér求qiú,犹yóu浑hún象xiàng之zhī流liú,外wài内nèi天tiān地dì之zhī状zhuàng,不bù失shī其qí位wèi也yě。吴wú时shí又yòu有yǒu葛gé衡héng,明míng达dá天tiān官guān,能néng为wèi机jī巧qiǎo。改gǎi作zuò浑hún天tiān,使shǐ地dì居jū于yú天tiān中zhōng。以yǐ机jī动dòng之zhī,天tiān动dòng而ér地dì止zhǐ,以yǐ上shàng应yīng晷guǐ度dù,则zé乐lè之zhī之zhī所suǒ放fàng述shù也yě。到dào元yuán嘉jiā十shí七qī年nián,又yòu作zuò小xiǎo浑hún天tiān,二èr分fēn为wèi一yí度dù,径jìng二èr尺chǐ二èr寸cùn,周zhōu六liù尺chǐ六liù寸cùn。安ān二èr十shí八bā宿xiù中zhōng外wài官guān星xīng备bèi足zú。以yǐ白bái青qīng黄huáng等děng三sān色sè珠zhū为wèi三sān家jiā星xīng。其qí日rì月yuè五wǔ星xīng,悉xī居jū黄huáng道dào。亦yì象xiàng天tiān运yùn,而ér地dì在zài其qí中zhōng。宋sòng元yuán嘉jiā所suǒ造zào仪yí象xiàng器qì,开kāi皇huáng九jiǔ年nián平píng陈chén后hòu,并bìng入rù长cháng安ān。大dà业yè初chū,移yí于yú东dōng都dōu观guān象xiàng殿diàn。

○盖gài图tú

晋jìn侍shì中zhōng刘liú智zhì云yún:“颛zhuān顼xū造zào浑hún仪yí,黄huáng帝dì为wèi盖gài天tiān。”然rán此cǐ二èr器qì,皆jiē古gǔ之zhī所suǒ制zhì,但dàn传chuán说shuō义yì者zhě,失shī其qí用yòng耳ěr。昔xī者zhě圣shèng王wáng正zhèng历lì明míng时shí,作zuò圆yuán盖gài以yǐ圆yuán列liè宿sù。极jí在zài其qí中zhōng,回huí之zhī以yǐ观guān天tiān象xiàng。分fēn三sān百bǎi六liù十shí五wǔ度dù、四sì分fēn度dù之zhī一yī,以yǐ定dìng日rì数shù。日rì行xíng于yú星xīng纪jì,转zhuǎn回huí右yòu行xíng,故gù圆yuán规guī之zhī,以yǐ为wéi日rì行háng道dào。欲yù明míng其qí四sì时shí所suǒ在zài,故gù于yú春chūn也yě,则zé以yǐ青qīng为wèi道dào;于yú夏xià也yě,则zé以yǐ赤chì为wèi道dào;于yú秋qiū也yě,则zé以yǐ白bái为wèi道dào;于yú冬dōng也yě,则zé以yǐ黑hēi为wèi道dào。四sì季jì之zhī末mò,各gè十shí八bā日rì,则zé以yǐ黄huáng为wèi道dào。盖gài图tú已yǐ定dìng,仰yǎng观guān虽suī明míng,而ér未wèi可kě正zhèng昏hūn明míng,分fēn昼zhòu夜yè,故gù作zuò浑hún仪yí,以yǐ象xiàng天tiān体tǐ。今jīn案àn自zì开kāi皇huáng已yǐ后hòu,天tiān下xià一yī统tǒng,灵líng台tái以yǐ后hòu魏wèi铁tiě浑hún天tiān仪yí,测cè七qī曜yào盈yíng缩suō,以yǐ盖gài图tú列liè星xīng坐zuò,分fēn黄huáng赤chì二èr道dào距jù二èr十shí八bā宿xiù分fēn度dù,而ér莫mò有yǒu更gèng为wéi浑hún象xiàng者zhě矣yǐ。

仁rén寿shòu四sì年nián,河hé间jiān刘liú焯chāo造zào《皇huáng极jí历lì》,上shàng启qǐ于yú东dōng宫gōng。论lùn浑hún天tiān云yún:

璇xuán玑jī玉yù衡héng,正zhèng天tiān之zhī器qì,帝dì王wáng钦qīn若ruò,世shì传chuán其qí象xiàng。汉hàn之zhī孝xiào武wǔ,详xiáng考kǎo律lǜ历lì,纠jiū落là下xià闳hóng、鲜xiān于yú妄wàng人rén等děng,共gòng所suǒ营yíng定dìng。逮dǎi于yú张zhāng衡héng,又yòu寻xún述shù作zuò,亦yì其qí体tǐ制zhì,不bù异yì闳hóng等děng。虽suī闳hóng制zhì莫mò存cún,而ér衡héng造zào有yǒu器qì。至zhì吴wú时shí,陆lù绩jì、王wáng蕃fān,并bìng要yào修xiū铸zhù。绩jì小xiǎo有yǒu异yì,蕃fān乃nǎi事shì同tóng。宋sòng有yǒu钱qián乐lè之zhī,魏wèi初chū晁cháo崇chóng等děng,总zǒng用yòng铜tóng铁tiě,小xiǎo大dà有yǒu殊shū,规guī域yù经jīng模mó,不bù异yì蕃fān造zào。观guān蔡cài邕yōng《月yuè令lìng章zhāng句jù》,郑zhèng玄xuán注zhù《考kǎo灵líng曜yào》,势shì同tóng衡héng法fǎ,迄qì今jīn不bù改gǎi。焯chāo以yǐ愚yú管guǎn,留liú情qíng推tuī测cè,见jiàn其qí数shù制zhì,莫mò不bù违wéi爽shuǎng。失shī之zhī千qiān里lǐ,差chà若ruò毫háo厘lí,大dà象xiàng一yī乖guāi,余yú何hé可kě验yàn。况kuàng赤chì黄huáng均jūn度dù,月yuè无wú出chū入rù,至zhì所suǒ恆héng定dìng,气qì不bù别bié衡héng。分fēn刻kè本běn差chà,轮lún回huí守shǒu故gù。其qí为wèi疏shū谬miù,不bù可kě复fù言yán。亦yì既jì由yóu理lǐ不bù明míng,致zhì使shǐ异yì家jiā间jiān出chū。盖gài及jí宣xuān夜yè,三sān说shuō并bìng驱qū,平píng、昕xīn、安ān、穹qióng,四sì天tiān腾téng沸fèi。至zhì当dāng不bù二èr,理lǐ唯wéi一yī揆kuí,岂qǐ容róng天tiān体tǐ,七qī种zhǒng殊shū说shuō?又yòu影yǐng漏lòu去qù极jí,就jiù浑hún可kě推tuī,百bǎi骸hái共gòng体tǐ,本běn非fēi异yì物wù。此cǐ真zhēn已yǐ验yàn,彼bǐ伪wěi自zì彰zhāng,岂qǐ朗lǎng日rì未wèi晖huī,爝jué火huǒ不bù息xī,理lǐ有yǒu而ér阙quē,讵jù不bù可kě悲bēi者zhě也yě?昔xī蔡cài邕yōng自zì朔shuò方fāng上shàng书shū曰yuē:“以yǐ八bā尺chǐ之zhī仪yí,度dù知zhī天tiān地dì之zhī象xiàng,古gǔ有yǒu其qí器qì,而ér无wú其qí书shū。常cháng欲yù寝qǐn伏fú仪yí下xià,案àn度dù成chéng数shù,而ér为wèi立lì说shuō。”邕yōng以yǐ负fù罪zuì朔shuò裔yì,书shū奏zòu不bù许xǔ。邕yōng若ruò蒙méng许xǔ,亦yì必bì不bù能néng。邕yōng才cái不bù逾yú张zhāng衡héng,衡héng本běn岂qǐ有yǒu遗yí思sī也yě?则zé有yǒu器qì无wú书shū,观guān不bù能néng悟wù。焯chāo今jīn立lì术shù,改gǎi正zhèng旧jiù浑hún。又yòu以yǐ二èr至zhì之zhī影yǐng,定dìng去qù极jí晷guǐ漏lòu,并bìng天tiān地dì高gāo远yuǎn,星xīng辰chén运yùn周zhōu,所suǒ宗zōng有yǒu本běn,皆jiē有yǒu其qí率lǜ。祛qū今jīn贤xián之zhī巨jù惑huò,稽jī往wǎng哲zhé之zhī群qún疑yí,豁huō若ruò云yún披pī,朗lǎng如rú雾wù散sàn。为wèi之zhī错cuò综zōng,数shù卷juǎn已yǐ成chéng,待dài得dé影yǐng差chà,谨jǐn更gèng启qǐ送sòng。

又yòu云yún:“《周zhōu官guān》夏xià至zhì日rì影yǐng,尺chǐ有yǒu五wǔ寸cùn。张zhāng衡héng、郑zhèng玄xuán、王wáng番fān、陆lù绩jì先xiān儒rú等děng,皆jiē以yǐ为wéi影yǐng千qiān里lǐ差chà一yī寸cùn。言yán南nán戴dài日rì下xià万wàn五wǔ千qiān里lǐ,表biǎo影yǐng正zhèng同tóng,天tiān高gāo乃nǎi异yì。考kǎo之zhī算suàn法fǎ,必bì为wèi不bù可kě。寸cùn差chà千qiān里lǐ,亦yì无wú典diǎn说shuō,明míng为wèi意yì断duàn,事shì不bù可kě依yī。今jīn交jiāo、爱ài之zhī州zhōu,表biǎo北běi无wú影yǐng,计jì无wú万wàn里lǐ,南nán过guò戴dài日rì。是shì千qiān里lǐ一yī寸cùn,非fēi其qí实shí差chà。焯chāo今jīn说shuō浑hún,以yǐ道dào为wèi率lǜ,道dào里lǐ不bù定dìng,得dé差chà乃nǎi审shěn。既jì大dà圣shèng之zhī年nián,升shēng平píng之zhī日rì,厘lí改gǎi群qún谬miù,斯sī正zhèng其qí时shí。请qǐng一yī水shuǐ工gōng并bìng解jiě算suàn术shù士shì,取qǔ河hé南nán、北běi平píng地dì之zhī所suǒ,可kě量liàng数shù百bǎi里lǐ,南nán北běi使shǐ正zhèng。审shěn时shí以yǐ漏lòu,平píng地dì以yǐ绳shéng,随suí气qì至zhì分fēn,同tóng日rì度dù影yǐng。得dé其qí差chà率lǜ,里lǐ即jí可kě知zhī。则zé天tiān地dì无wú所suǒ匿nì其qí形xíng,辰chén象xiàng无wú所suǒ逃táo其qí数shù,超chāo前qián显xiǎn圣shèng,效xiào象xiàng除chú疑yí。请qǐng勿wù以yǐ人rén废fèi言yán。”不bù用yòng。至zhì大dà业yè三sān年nián,敕chì诸zhū郡jùn测cè影yǐng,而ér焯chāo寻xún卒zú,事shì遂suì寝qǐn废fèi。

○地dì中zhōng

《周zhōu礼lǐ·大dà司sī徒tú职zhí》:“以yǐ土tǔ圭guī之zhī法fǎ,测cè土tǔ深shēn,正zhèng日rì景jǐng,以yǐ求qiú地dì中zhōng。”此cǐ则zé浑hún天tiān之zhī正zhèng说shuō,立lì仪yí象xiàng之zhī大dà本běn。故gù云yún:“日rì南nán则zé景jǐng短duǎn多duō暑shǔ,日rì北běi则zé景jǐng长zhǎng多duō寒hán,日rì东dōng则zé景jǐng夕xī多duō风fēng,日rì西xī则zé景jǐng朝cháo多duō阴yīn。日rì至zhì之zhī景jǐng,尺chǐ有yǒu五wǔ寸cùn,谓wèi之zhī地dì中zhōng。天tiān地dì之zhī所suǒ合hé也yě。四sì时shí之zhī所suǒ交jiāo也yě,风fēng雨yǔ之zhī所suǒ会huì也yě,阴yīn阳yáng之zhī所suǒ和hé也yě。然rán则zé百bǎi物wù阜fù安ān,乃nǎi建jiàn王wáng国guó焉yān。”又yòu《考kǎo工gōng记jì·匠jiàng人rén》:“建jiàn国guó,水shuǐ地dì以yǐ县xiàn。置zhìS以yǐ县xiàn,眡shì以yǐ景jǐng。为wèi规guī,识shí日rì出chū之zhī景jǐng与yǔ日rì入rù之zhī景jǐng。昼zhòu参cān诸zhū日rì中zhōng之zhī景jǐng,夜yè考kǎo之zhī极jí星xīng,以yǐ正zhèng朝zhāo夕xī。”案àn土tǔ圭guī正zhèng影yǐng,经jīng文wén阙quē略lüè,先xiān儒rú解jiě说shuō,又yòu非fēi明míng审shěn。祖zǔ恆héng错cuò综zōng经jīng注zhù,以yǐ推tuī地dì中zhōng。其qí法fǎ曰yuē:“先xiān验yàn昏hūn旦dàn,定dìng刻kè漏lòu,分fēn辰chén次cì。乃nǎi立lì仪yí表biǎo于yú准zhǔn平píng之zhī地dì,名míng曰yuē南nán表biǎo。漏lòu刻kè上shàng水shuǐ,居jū日rì之zhī中zhōng,更gèng立lì一yī表biǎo于yú南nán表biǎo影yǐng末mò,名míng曰yuē中zhōng表biǎo。夜yè依yī中zhōng表biǎo,以yǐ望wàng北běi极jí枢shū,而ér立lì北běi表biǎo,令lìng参cān相xiāng直zhí。三sān表biǎo皆jiē以yǐ悬xuán准zhǔn定dìng,乃nǎi观guān。三sān表biǎo直zhí者zhě,其qí立lì表biǎo之zhī地dì,即jí当dāng子zǐ午wǔ之zhī正zhèng。三sān表biǎo曲qū者zhě,地dì偏piān僻pì。每měi观guān中zhōng表biǎo,以yǐ知zhī所suǒ偏piān。中zhōng表biǎo在zài西xī,则zé立lì表biǎo处chù在zài地dì中zhōng之zhī西xī,当dāng更gèng向xiàng东dōng求qiú地dì中zhōng。若ruò中zhōng表biǎo在zài东dōng,则zé立lì表biǎo处chù在zài地dì中zhōng之zhī东dōng也yě,当dāng更gèng向xiàng西xī求qiú地dì中zhōng。取qǔ三sān表biǎo直zhí者zhě,为wèi地dì中zhōng之zhī正zhèng。又yòu以yǐ春chūn秋qiū二èr分fēn之zhī日rì,旦dàn始shǐ出chū东dōng方fāng半bàn体tǐ,乃nǎi立lì表biǎo于yú中zhōng表biǎo之zhī东dōng,名míng曰yuē东dōng表biǎo。令lìng东dōng表biǎo与yǔ日rì及jí中zhōng表biǎo参cān相xiāng直zhí。视shì日rì之zhī夕xī,日rì入rù西xī方fāng半bàn体tǐ,又yòu立lì表biǎo于yú中zhōng表biǎo之zhī西xī,名míng曰yuē西xī表biǎo。亦yì从cóng中zhōng表biǎo西xī望wàng西xī表biǎo及jí日rì,参cān相xiāng直zhí。乃nǎi观guān三sān表biǎo直zhí者zhě,即jí地dì南nán北běi之zhī中zhōng也yě。若ruò中zhōng表biǎo差chà近jìn南nán,则zé所suǒ测cè之zhī地dì在zài卯mǎo酉yǒu之zhī南nán。中zhōng表biǎo差chà在zài北běi,则zé所suǒ测cè之zhī地dì在zài卯mǎo酉yǒu之zhī北běi。进jìn退tuì南nán北běi,求qiú三sān表biǎo直zhí正zhèng东dōng西xī者zhě,则zé其qí地dì处chǔ中zhōng,居jū卯mǎo酉yǒu之zhī正zhèng也yě。”

○晷guǐ影yǐng

昔xī者zhě周zhōu公gōng测cè晷guǐ影yǐng于yú阳yáng城chéng,以yǐ参cān考kǎo历lì纪jì。其qí于yú《周zhōu礼lǐ》,在zài《大dà司sī徒tú之zhī职zhí》:“以yǐ土tǔ圭guī之zhī法fǎ,测cè土tǔ深shēn,正zhèng日rì景jǐng,以yǐ求qiú地dì中zhōng。日rì至zhì之zhī景jǐng,尺chǐ有yǒu五wǔ寸cùn,则zé天tiān地dì之zhī所suǒ合hé,四sì时shí之zhī所suǒ交jiāo。百bǎi物wù阜fù安ān,乃nǎi建jiàn王wáng国guó。”然rán则zé日rì为wèi阳yáng精jīng,玄xuán象xiàng之zhī著zhù然rán者zhě也yě。生shēng灵líng因yīn之zhī动dòng息xī,寒hán暑shǔ由yóu其qí递dì代dài。观guān阴yīn阳yáng之zhī升shēng降jiàng,揆kuí天tiān地dì之zhī高gāo远yuǎn,正zhèng位wèi辨biàn方fāng,定dìng时shí考kǎo闰rùn,莫mò近jìn于yú兹zī也yě。古gǔ法fǎ简jiǎn略lüè,旨zhǐ趣qù难nán究jiū,术shù家jiā考kǎo测cè,互hù有yǒu异yì同tóng。先xiān儒rú皆jiē云yún:“夏xià至zhì立lì八bā尺chǐ表biǎo于yú阳yáng城chéng,其qí影yǐng与yǔ土tǔ圭guī等děng。”案àn《尚shàng书shū考kǎo灵líng曜yào》称chēng:“日rì永yǒng,景jǐng尺chǐ五wǔ寸cùn;日rì短duǎn,景jǐng尺chǐ三sān寸cùn。”《易yì通tōng卦guà验yàn》曰yuē:“冬dōng至zhì之zhī日rì,树shù八bā尺chǐ之zhī表biǎo,日rì中zhōng视shì其qí晷guǐ景jǐng长cháng短duǎn,以yǐ占zhàn和hé否fǒu。夏xià至zhì景jǐng一yī尺chǐ四sì寸cùn八bā分fēn,冬dōng至zhì一yī丈zhàng三sān尺chǐ。”《周zhōu髀bì》云yún:“成chéng周zhōu土tǔ中zhōng,夏xià至zhì景jǐng一yī尺chǐ六liù寸cùn,冬dōng至zhì景jǐng一yī丈zhàng三sān尺chǐ五wǔ寸cùn。”刘liú向xiàng《鸿hóng范fàn传chuán》曰yuē:“夏xià至zhì景jǐng长zhǎng一yī尺chǐ五wǔ寸cùn八bā分fēn,冬dōng至zhì一yī丈zhàng三sān尺chǐ一yī寸cùn四sì分fēn,春chūn秋qiū二èr分fēn,景jǐng七qī尺chǐ三sān寸cùn六liù分fēn。”后hòu汉hàn《四sì分fēn历lì》、魏wèi《景jǐng初chū历lì》、宋sòng《元yuán嘉jiā历lì》、大dà明míng祖zǔ冲chōng之zhī历lì,皆jiē与yǔ《考kǎo灵líng曜yào》同tóng。汉hàn、魏wèi及jí宋sòng,所suǒ都dōu皆jiē别bié,四sì家jiā历lì法fǎ,候hòu影yǐng则zé齐qí。且qiě纬wěi候hòu所suǒ陈chén,恐kǒng难nán依yī据jù。刘liú向xiàng二èr分fēn之zhī影yǐng,直zhí以yǐ率lǜ推tuī,非fēi因yīn表biǎo候hòu定dìng其qí长cháng短duǎn。然rán寻xún晷guǐ影yǐng尺chǐ丈zhàng,虽suī有yǒu大dà较jiào,或huò地dì域yù不bù改gǎi,而ér分fēn寸cùn参cēn差cī,或huò南nán北běi殊shū方fāng,而ér长cháng短duǎn维wéi一yī。盖gài术shù士shì未wèi能néng精jīng验yàn,冯féng占zhàn所suǒ以yǐ致zhì乖guāi。今jīn删shān其qí繁fán杂zá,附fù于yú此cǐ云yún。

梁liáng天tiān监jiān中zhōng,祖zǔ恆héng造zào八bā尺chǐ铜tóng表biǎo,其qí下xià与yǔ圭guī相xiāng连lián。圭guī上shàng为wèi沟gōu,置zhì水shuǐ,以yǐ取qǔ平píng正zhèng。揆kuí测cè日rì晷guǐ,求qiú其qí盈yíng缩suō。至zhì大dà同tóng十shí年nián,太tài史shǐ令lìng虞yú广guǎng刂dāo又yòu用yòng九jiǔ尺chǐ表biǎo格gé江jiāng左zuǒ之zhī影yǐng。夏xià至zhì一yī尺chǐ三sān寸cùn二èr分fēn,冬dōng至zhì一yī丈zhàng三sān尺chǐ七qī分fēn,立lì夏xià、立lì秋qiū二èr尺chǐ四sì寸cùn五wǔ分fēn,春chūn分fēn、秋qiū分fēn五wǔ尺chǐ三sān寸cùn九jiǔ分fēn。陈chén氏shì一yí代dài,唯wéi用yòng梁liáng法fǎ。齐qí神shén武wǔ以yǐ洛luò阳yáng旧jiù器qì并bìng徙xǐ鄴yè中zhōng,以yǐ暨jì文wén宣xuān受shòu终zhōng,竟jìng未wèi考kǎo验yàn。至zhì武wǔ平píng七qī年nián,讫qì干gàn景jǐng礼lǐ始shǐ荐jiàn刘liú孝xiào孙sūn、张zhāng孟mèng宾bīn等děng于yú后hòu主zhǔ。刘liú、张zhāng建jiàn表biǎo测cè影yǐng,以yǐ考kǎo分fēn至zhì之zhī气qì。草cǎo创chuàng未wèi就jiù,仍réng遇yù朝cháo亡wáng。周zhōu自zì天tiān和hé以yǐ来lái,言yán历lì者zhě纷fēn纷fēn复fù出chū。亦yì验yàn二èr至zhì之zhī影yǐng,以yǐ考kǎo历lì之zhī精jīng粗cū。及jí高gāo祖zǔ践jiàn极jí之zhī后hòu,大dà议yì造zào历lì。张zhāng胄zhòu玄xuán兼jiān明míng揆kuí测cè,言yán日rì长zhǎng之zhī瑞ruì。有yǒu诏zhào司sī存cún,而ér莫mò能néng考kǎo决jué。至zhì开kāi皇huáng十shí九jiǔ年nián,袁yuán充chōng为wèi太tài史shǐ令lìng,欲yù成chéng胄zhòu玄xuán旧jiù事shì,复fù表biǎo曰yuē:“隋suí兴xīng已yǐ后hòu,日rì景jǐng渐jiàn长zhǎng。开kāi皇huáng元yuán年nián冬dōng至zhì之zhī影yǐng,长zhǎng一yī丈zhàng二èr尺chǐ七qī寸cùn二èr分fēn,自zì尔ěr渐jiàn短duǎn。至zhì十shí七qī年nián冬dōng至zhì影yǐng,一yī丈zhàng二èr尺chǐ六liù寸cùn三sān分fēn。四sì年nián冬dōng至zhì,在zài洛luò阳yáng测cè影yǐng,长zhǎng一yī丈zhàng二èr尺chǐ八bā寸cùn八bā分fēn。二èr年nián夏xià至zhì影yǐng,一yī尺chǐ四sì寸cùn八bā分fēn,自zì尔ěr渐jiàn短duǎn。至zhì十shí六liù年nián夏xià至zhì影yǐng,一yī尺chǐ四sì寸cùn五wǔ分fēn。其qí十shí八bā年nián冬dōng至zhì,阴yīn云yún不bù测cè。元yuán年nián、十shí七qī年nián、十shí八bā年nián夏xià至zhì,亦yì阴yīn云yún不bù测cè。《周zhōu官guān》以yǐ土tǔ圭guī之zhī法fǎ正zhèng日rì影yǐng,日rì至zhì之zhī影yǐng,尺chǐ有yǒu五wǔ寸cùn。郑zhèng玄xuán云yún:‘冬dōng至zhì之zhī景jǐng,一yī丈zhàng三sān尺chǐ。’今jīn十shí六liù年nián夏xià至zhì之zhī影yǐng,短duǎn于yú旧jiù五wǔ分fēn,十shí七qī年nián冬dōng至zhì之zhī影yǐng,短duǎn于yú旧jiù三sān寸cùn七qī分fēn。日rì去qù极jí近jìn,则zé影yǐng短duǎn而ér日rì长zhǎng;去qù极jí远yuǎn,则zé影yǐng长zhǎng而ér日rì短duǎn。行xíng内nèi道dào则zé去qù极jí近jìn,行xíng外wài道dào则zé去qù极jí远yuǎn。《尧yáo典diǎn》云yún:‘日rì短duǎn星xīng昴mǎo,以yǐ正zhèng仲zhòng冬dōng。’据jù昴mǎo星xīng昏hūn中zhōng,则zé知zhī尧yáo时shí仲zhòng冬dōng,日rì在zài须xū女nǚ十shí度dù。以yǐ历lì数shù推tuī之zhī,开kāi皇huáng以yǐ来lái冬dōng至zhì,日rì在zài斗dòu十shí一yí度dù,与yǔ唐táng尧yáo之zhī代dài,去qù极jí俱jù近jìn。谨jǐn案àn《元yuán命mìng包bāo》云yún:‘日rì月yuè出chū内nèi道dào,〔玑jī得dé其qí常cháng,天tiān帝dì崇chóng灵líng,圣shèng王wáng初chū功gōng。’京jīng房fáng《别bié对duì》曰yuē:‘太tài平píng日rì行xíng上shàng道dào,升shēng平píng日rì行xíng次cì道dào,霸bà代dài日rì行xíng下xià道dào。’伏fú惟wéi大dà隋suí启qǐ运yùn,上shàng感gǎn乾qián元yuán,影yǐng短duǎn日rì长zhǎng,振zhèn古gǔ希xī有yǒu。”是shì时shí废fèi庶shù人rén勇yǒng,晋jìn王wáng广guǎng初chū为wèi太tài子zi,充chōng奏zòu此cǐ事shì,深shēn合hé时shí宜yí。上shàng临lín朝cháo谓wèi百bǎi官guān曰yuē:“景jǐng长zhǎng之zhī庆qìng,天tiān之zhī祐yòu也yě。今jīn太tài子zi新xīn立lì,当dāng须xū改gǎi元yuán,宜yí取qǔ日rì长zhǎng之zhī意yì,以yǐ为wéi年nián号hào。”由yóu是shì改gǎi开kāi皇huáng二èr十shí一yī年nián为wèi仁rén寿shòu元yuán年nián。此cǐ后hòu百bǎi工gōng作zuò役yì,并bìng加jiā程chéng课kè,以yǐ日rì长zhǎng故gù也yě。皇huáng太tài子zi率lǜ百bǎi官guān诣yì阙quē陈chén贺hè。案àn日rì徐xú疾jí盈yíng缩suō无wú常cháng,充chōng等děng以yǐ为wéi祥xiáng瑞ruì,大dà为wèi议yì者zhě所suǒ贬biǎn。

又yòu《考kǎo灵líng曜yào》、《周zhōu髀bì》张zhāng衡héng《灵líng宪xiàn》及jí郑zhèng玄xuán注zhù《周zhōu官guān》,并bìng云yún:“日rì影yǐng于yú地dì,千qiān里lǐ而ér差chà一yī寸cùn。”案àn宋sòng元yuán嘉jiā十shí九jiǔ年nián壬rén午wǔ,使shǐ使shǐ往wǎng交jiāo州zhōu测cè影yǐng。夏xià至zhì之zhī日rì,影yǐng出chū表biǎo南nán三sān寸cùn二èr分fēn。何hé承chéng天tiān遥yáo取qǔ阳yáng城chéng,云yún夏xià至zhì一yī尺chǐ五wǔ寸cùn。计jì阳yáng城chéng去qù交jiāo州zhōu,路lù当dāng万wàn里lǐ,而ér影yǐng实shí差chà一yī尺chǐ八bā寸cùn二èr分fēn。是shì六liù百bǎi里lǐ而ér差chà一yī寸cùn也yě。又yòu当dāng梁liáng大dà同tóng中zhōng,二èr至zhì所suǒ测cè,以yǐ八bā尺chǐ表biǎo率shuài取qǔ之zhī,夏xià至zhì当dāng一yī尺chǐ一yī寸cùn七qī分fēn强qiáng。后hòu魏wèi信xìn都dōu芳fāng注zhù《周zhōu髀bì四sì术shù》,称chēng永yǒng平píng元yuán年nián戊wù子zi,当dāng梁liáng天tiān监jiān之zhī七qī年nián,见jiàn洛luò阳yáng测cè影yǐng,又yòu见jiàn公gōng孙sūn崇chóng集jí诸zhū朝cháo士shì,共gòng观guān秘mì书shū影yǐng。同tóng是shì夏xià至zhì日rì,其qí中zhōng影yǐng皆jiē长zhǎng一yī尺chǐ五wǔ寸cùn八bā分fēn。以yǐ此cǐ推tuī之zhī,金jīn陵líng去qù洛luò,南nán北běi略lüè当dāng千qiān里lǐ,而ér影yǐng差chà四sì寸cùn。则zé二èr百bǎi五wǔ十shí里lǐ而ér影yǐng差chà一yī寸cùn也yě。况kuàng人rén路lù迂yū回huí,山shān川chuān登dēng降jiàng,方fāng于yú鸟niǎo道dào,所suǒ校xiào弥mí多duō,则zé千qiān里lǐ之zhī言yán,未wèi足zú依yī也yě。其qí揆kuí测cè参cēn差cī如rú此cǐ,故gù备bèi论lùn之zhī。

○漏lòu刻kè

昔xī黄huáng帝dì创chuàng观guān漏lòu水shuǐ,制zhì器qì取qǔ则zé,以yǐ分fēn昼zhòu夜yè。其qí后hòu因yīn以yǐ命mìng官guān,《周zhōu礼lǐ》挈qiè壶hú氏shì则zé其qí职zhí也yě。其qí法fǎ,总zǒng以yǐ百bǎi刻kè,分fēn于yú昼zhòu夜yè。冬dōng至zhì昼zhòu漏lòu四sì十shí刻kè,夜yè漏lòu六liù十shí刻kè。夏xià至zhì昼zhòu漏lòu六liù十shí刻kè,夜yè漏lòu四sì十shí刻kè。春chūn秋qiū二èr分fēn,昼zhòu夜yè各gè五wǔ十shí刻kè。日rì未wèi出chū前qián二èr刻kè半bàn而ér明míng,既jì没méi后hòu二èr刻kè半bàn乃nǎi昏hūn。减jiǎn夜yè五wǔ刻kè,以yǐ益yì昼zhòu漏lòu,谓wèi之zhī昏hūn旦dàn。漏lòu刻kè皆jiē随suí气qì增zēng损sǔn。冬dōng夏xià二èr至zhì之zhī间jiān,昼zhòu夜yè长cháng短duǎn,凡fán差chà二èr十shí刻kè。每měi差chà一yī刻kè为wèi一yī箭jiàn。冬dōng至zhì互hù起qǐ其qí首shǒu,凡fán有yǒu四sì十shí一yī箭jiàn。昼zhòu有yǒu朝cháo,有yǒu禺yú,有yǒu中zhōng,有yǒu晡bū,有yǒu夕xī。夜yè有yǒu甲jiǎ、乙yǐ、丙bǐng、丁dīng、戊wù。昏hūn旦dàn有yǒu星xīng中zhōng。每měi箭jiàn各gè有yǒu其qí数shù,皆jiē所suǒ以yǐ分fēn时shí代dài守shǒu,更gèng其qí作zuò役yì。

汉hàn兴xīng,张zhāng苍cāng因yīn循xún古gǔ制zhì,犹yóu多duō疏shū阔kuò。及jí孝xiào武wǔ考kǎo定dìng星xīng历lì,下xià漏lòu以yǐ追zhuī天tiān度dù,亦yì未wèi能néng尽jǐn其qí理lǐ。刘liú向xiàng《鸿hóng范fàn传chuán》记jì武wǔ帝dì时shí所suǒ用yòng法fǎ云yún:“冬dōng夏xià二èr至zhì之zhī间jiān,一yì百bǎi八bā十shí余yú日rì,昼zhòu夜yè差chà二èr十shí刻kè。”大dà率shuài二èr至zhì之zhī后hòu,九jiǔ日rì而ér增zēng损sǔn一yī刻kè焉yān。至zhì哀āi帝dì时shí,又yòu改gǎi用yòng昼zhòu夜yè一yì百bǎi二èr十shí刻kè,寻xún亦yì寝qǐn废fèi。至zhì王wáng莽mǎng窃qiè位wèi,又yòu遵zūn行xíng之zhī。光guāng武wǔ之zhī初chū,亦yì以yǐ百bǎi刻kè九jiǔ日rì加jiā减jiǎn法fǎ,编biān于yú《甲jiǎ令lìng》,为wèi《常cháng符fú漏lòu品pǐn》。至zhì和hé帝dì永yǒng元yuán十shí四sì年nián,霍huò融róng上shàng言yán:“官guān历lì率lǜ九jiǔ日rì增zēng减jiǎn一yī刻kè,不bù与yǔ天tiān相xiāng应yìng。或huò时shí差chà至zhì二èr刻kè半bàn,不bù如rú夏xià历lì漏lòu刻kè,随suí日rì南nán北běi为wèi长cháng短duǎn。”乃nǎi诏zhào用yòng夏xià历lì漏lòu刻kè。依yī日rì行xíng黄huáng道dào去qù极jí,每měi差chà二èr度dù四sì分fēn,为wèi增zēng减jiǎn一yī刻kè。凡fán用yòng四sì十shí八bā箭jiàn,终zhōng于yú魏wèi、晋jìn,相xiāng传chuán不bù改gǎi。

宋sòng何hé承chéng天tiān以yǐ月yuè蚀shí所suǒ在zài,当dāng日rì之zhī衡héng,考kǎo验yàn日rì宿sù,知zhī移yí旧jiù六liù度dù。冬dōng至zhì之zhī日rì,其qí影yǐng极jí长zhǎng,测cè量liáng晷guǐ度dù,知zhī冬dōng至zhì移yí旧jiù四sì日rì。前qián代dài诸zhū漏lòu,春chūn分fēn昼zhòu长zhǎng,秋qiū分fēn昼zhòu短duǎn,差chà过guò半bàn刻kè。皆jiē由yóu气qì日rì不bù正zhèng,所suǒ以yǐ而ér然rán。遂suì议yì造zào漏lòu法fǎ。春chūn秋qiū二èr分fēn,昏hūn旦dàn昼zhòu夜yè漏lòu各gè五wǔ十shí五wǔ刻kè。齐qí及jí梁liáng初chū,因yīn循xún不bù改gǎi。至zhì天tiān监jiān六liù年nián,武wǔ帝dì以yǐ昼zhòu夜yè百bǎi刻kè,分fēn配pèi十shí二èr辰chén,辰chén得dé八bā刻kè,仍réng有yǒu余yú分fēn。乃nǎi以yǐ昼zhòu夜yè为wèi九jiǔ十shí六liù刻kè,一yī辰chén有yǒu全quán刻kè八bā焉yān。至zhì大dà同tóng十shí年nián,又yòu改gǎi用yòng一yì百bǎi八bā刻kè。依yī《尚shàng书shū考kǎo灵líng曜yào》昼zhòu夜yè三sān十shí六liù顷qǐng之zhī数shù,因yīn而ér三sān之zhī。冬dōng至zhì昼zhòu漏lòu四sì十shí八bā刻kè,夜yè漏lòu六liù十shí刻kè。夏xià至zhì昼zhòu漏lòu七qī十shí刻kè,夜yè漏lòu三sān十shí八bā刻kè。春chūn秋qiū二èr分fēn,昼zhòu漏lòu六liù十shí刻kè,夜yè漏lòu四sì十shí八bā刻kè。昏hūn旦dàn之zhī数shù各gè三sān刻kè。先xiān令lìng祖zǔ恆héng为wèi《漏lòu经jīng》,皆jiē依yī浑hún天tiān黄huáng道dào日rì行xíng去qù极jí远yuǎn近jìn,为wèi用yòng箭jiàn日rì率lǜ。陈chén文wén帝dì天tiān嘉jiā中zhōng,亦yì命mìng舍shě人rén硃zhū史shǐ造zào漏lòu,依yī古gǔ百bǎi刻kè为wèi法fǎ。周zhōu、齐qí因yīn循xún魏wèi漏lòu。晋jìn、宋sòng、梁liáng大dà同tóng,并bìng以yǐ百bǎi刻kè分fēn于yú昼zhòu夜yè。

隋suí初chū,用yòng周zhōu朝cháo尹yǐn公gōng正zhèng、马mǎ显xiǎn所suǒ造zào《漏lòu经jīng》。至zhì开kāi皇huáng十shí四sì年nián,鄜fū州zhōu司sī马mǎ袁yuán充chōng上shàng晷guǐ影yǐng漏lòu刻kè。充chōng以yǐ短duǎn影yǐng平píng仪yí,均jūn布bù十shí二èr辰chén,立lì表biǎo,随suí日rì影yǐng所suǒ指zhǐ辰chén刻kè,以yǐ验yàn漏lòu水shuǐ之zhī节jié。十shí二èr辰chén刻kè,互hù有yǒu多duō少shǎo,时shí正zhèng前qián后hòu,刻kè亦yì不bù同tóng。其qí二èr至zhì二èr分fēn用yòng箭jiàn辰chén刻kè之zhī法fǎ,今jīn列liè之zhī云yún。

冬dōng至zhì:日rì出chū辰chén正zhèng,入rù申shēn正zhèng,昼zhòu四sì十shí刻kè,夜yè六liù十shí刻kè。

子zi、丑chǒu、亥hài各gè二èr刻kè,寅yín、戌xū各gè六liù刻kè,卯mǎo、酉yǒu各gè十shí三sān刻kè,辰chén、申shēn各gè十shí四sì刻kè,巳sì、未wèi各gè十shí刻kè,午wǔ八bā刻kè。

右yòu十shí四sì日rì改gǎi箭jiàn。

春chūn秋qiū二èr分fēn:日rì出chū卯mǎo正zhèng,入rù酉yǒu正zhèng,昼zhòu五wǔ十shí刻kè,夜yè五wǔ十shí刻kè。

子zi四sì刻kè,丑chǒu、亥hài七qī刻kè,寅yín、戌xū九jiǔ刻kè,卯mǎo、酉yǒu十shí四sì刻kè,辰chén、申shēn九jiǔ刻kè,巳sì、未wèi七qī刻kè,午wǔ四sì刻kè。

右yòu五wǔ日rì改gǎi箭jiàn。

夏xià至zhì:日rì出chū寅yín正zhèng,入rù戌xū正zhèng,昼zhòu六liù十shí刻kè,夜yè四sì十shí刻kè。

子zi八bā刻kè,丑chǒu、亥hài十shí刻kè,寅yín、戌xū十shí四sì刻kè,卯mǎo、酉yǒu十shí三sān刻kè,辰chén、申shēn六liù刻kè,巳sì、未wèi二èr刻kè,午wǔ二èr刻kè。

右yòu一yī十shí九jiǔ日rì,加jiā减jiǎn一yī刻kè,改gǎi箭jiàn。

袁yuán充chōng素sù不bù晓xiǎo浑hún天tiān黄huáng道dào去qù极jí之zhī数shù,苟gǒu役yì私sī智zhì,变biàn改gǎi旧jiù章zhāng,其qí于yú施shī用yòng,未wèi为wèi精jīng密mì。

开kāi皇huáng十shí七qī年nián,张zhāng胄zhòu玄xuán用yòng后hòu魏wèi浑hún天tiān铁tiě仪yí,测cè知zhī春chūn秋qiū二èr分fēn,日rì出chū卯mǎo酉yǒu之zhī北běi,不bù正zhèng当dāng中zhōng。与yǔ何hé承chéng天tiān所suǒ测cè颇pǒ同tóng,皆jiē日rì出chū卯mǎo三sān刻kè五wǔ十shí五wǔ分fēn,入rù酉yǒu四sì刻kè二èr十shí五wǔ分fēn。昼zhòu漏lòu五wǔ十shí刻kè十shí一yī分fēn,夜yè漏lòu四sì十shí九jiǔ刻kè四sì十shí分fēn,昼zhòu夜yè差chà六liù十shí分fēn刻kè之zhī四sì十shí。仁rén寿shòu四sì年nián,刘liú焯chāo上shàng《皇huáng极jí历lì》,有yǒu日rì行xíng迟chí疾jí,推tuī二èr十shí四sì气qì,皆jiē有yǒu盈yíng缩suō定dìng日rì。春chūn秋qiū分fēn定dìng日rì,去qù冬dōng至zhì各gè八bā十shí八bā日rì有yǒu奇qí,去qù夏xià至zhì各gè九jiǔ十shí三sān日rì有yǒu奇qí。二èr分fēn定dìng日rì,昼zhòu夜yè各gè五wǔ十shí刻kè。又yòu依yī浑hún天tiān黄huáng道dào,验yàn知zhī冬dōng至zhì夜yè漏lòu五wǔ十shí九jiǔ刻kè、一yì百bǎi分fēn刻kè之zhī八bā十shí六liù,昼zhòu漏lòu四sì十shí刻kè一yī十shí四sì分fēn,夏xià至zhì昼zhòu漏lòu五wǔ十shí九jiǔ刻kè八bā十shí六liù分fēn,夜yè漏lòu四sì十shí刻kè一yī十shí四sì分fēn。冬dōng夏xià二èr至zhì之zhī间jiān,昼zhòu夜yè差chà一yī十shí九jiǔ刻kè、一yì百bǎi分fēn刻kè之zhī七qī十shí二èr。胄zhòu玄xuán及jí焯chāo漏lòu刻kè,并bìng不bù施shī用yòng。然rán其qí法fǎ制zhì,皆jiē著zhù在zài历lì术shù,推tuī验yàn加jiā时shí,最zuì为wèi详xiáng审shěn。

大dà业yè初chū,耿gěng询xún作zuò古gǔ欹yī器qì,以yǐ漏lòu水shuǐ注zhù之zhī,献xiàn于yú炀yáng帝dì。帝dì善shàn之zhī,因yīn令lìng与yǔ宇yǔ文wén恺kǎi依yī后hòu魏wèi道dào士shì李lǐ兰lán所suǒ修xiū道dào家jiā上shàng法fǎ称chēng漏lòu制zhì,造zào称chēng水shuǐ漏lòu器qì,以yǐ充chōng行xíng从cóng。又yòu作zuò候hòu影yǐng分fēn箭jiàn上shàng水shuǐ方fāng器qì,置zhì于yú东dōng都dōu乾qián阳yáng殿diàn前qián鼓gǔ下xià司sī辰chén。又yòu作zuò马mǎ上shàng漏lòu刻kè,以yǐ从cóng行xíng辨biàn时shí刻kè。揆kuí日rì晷guǐ,下xià漏lòu刻kè,此cǐ二èr者zhě,测cè天tiān地dì正zhèng仪yí象xiàng之zhī本běn也yě。晷guǐ漏lòu沿yán革gé,今jīn古gǔ大dà殊shū,故gù列liè其qí差chà,以yǐ补bǔ前qián阙quē。

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