File:Cassini apparent.jpg
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原始文件 （1,672 × 1,645像素，文件大小：773 KB，MIME类型：image/jpeg）
摘要
| 描述 |
English: Representation of the apparent motion of the Sun, Mercury, and Venus from the Earth.
Taken from the "Astronomy" article in the first edition of wikipedia:Encyclopædia Britannica (1771). This geocentric diagram shows, from the location of the earth, the sun's apparent annual orbit, the orbit of Mercury for 7 years, and the orbit of Venus for 8 years, after which Venus returns to almost the same apparent position in relation to the earth and sun. |
| 日期 | |
| 来源 | Encyclopaedia Britannica (1st Edition, 1771; facsimile reprint 1971), Volume 1, Fig. 2 of Plate XL facing page 449. |
| 作者 | James Ferguson (1710-1776), based on similar diagrams by Giovanni Cassini (1625-1712) and Dr Roger Long (1680-1770); engraved for the Encyclopaedia by Andrew Bell. |
许可协议
|
This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1930. As such, this image is in the public domain in the United States. |  |
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2010年7月14日 (三) 11:09 | | 1,672 × 1,645（773 KB） | wikimediacommons>Chris55 | 300dpi resolution |
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