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Metadata
- Work ID
- 93639
- Document ID
- 260934
- Title
- 虞喜
- Corpus root
- 維基大典
- Page title
- 虞喜
- File
- 虞喜.txt
- Path
- 維基大典/clean/虞喜/虞喜.txt
Punctuation options
虞喜,字仲寧,
會稽餘姚人也。
成帝咸康中,因宣夜之說,作《
安天論
》,以難渾蓋,以為
天高窮于無窮,
地
深測于不測。天確乎在上,有常安之形。地魄焉在下,有居之體,常相覆冒。方則俱方,
圓
則俱圓,無方圓不同之義也。其光曜布列,各自運行,猶江海之有潮汐,萬品之有行藏也。古曆日有常度,天周為歲終,故久而益差。喜覺之,使天為天,歲為歲,乃立差以追其變,使五十年退一度。年七十六卒。
論曰:古無歲差之說,有之自喜始。其說以冬至度歲歲西移,與日
月兩交逆行相似。明末西人易為恒星東行,而冬至不動。立法雖殊,而以為歲之有差則一也。
據
《
晉書
·儒林傳》
《
天文志
》
《
唐書
·歷志》
《
疇人傳
》
虞喜一文似未成。宜善
之。