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摘要

描述Venus pentagram.png	English: The planet Venus orbits just over 13 times for every 8 orbits of the Earth, creating a pentagrammic pattern of inferior conjunctions. Each successive inferior conjunction occurs after about 1.6 Earth years and therefore shifts about 144 degrees in the direction opposite the Earth's orbital motion. During each cycle of 8 Earth years, the pentagram precesses about 1.5 degrees in the direction of Earth's orbital motion, reflecting the fact that the Earth:Venus orbital ratio is an approximate ('near') rather than a perfect orbital resonance. (Text written by TomRuen, FelineAvenger, and WolfmanSF)
日期	24 September 2007 Motion of planet venus over 5 successive inferior conjunctions follows a pentagram pattern, precessing 2/5 of an orbit between conjunctions.
來源	Computed, Originally uploaded to the English language Wikipedia Here's a similar plot from 1799! from James Ferguson’s, Astronomy Explained Upon Sir Isaac Newton’s Principles,1799 ed., plate III, opp. p. 67.
作者	自己的作品 by Tomruen
授權許可 (重用此檔案)

授權條款

此作品已由其作者，英文維基百科的Tomruen，釋出至公有領域。此授權條款在全世界均適用。 這可能在某些國家不合法，如果是的話： Tomruen授予任何人有權利使用此作品於任何用途，除受法律約束外，不受任何限制。Public domainPublic domainfalsefalse

原始上傳日誌

The original description page was on en.wikipedia (file log). All following user names refer to en.wikipedia.

• 22:11, 30 October 2007 (UTC) McLoaf 853×792 (8 KB)
• 09:07, 12 October 2007 (UTC) Max Elf 0×0 (29 KB) (Reverted to version as of 20:43, 24 September 2007)
• 09:06, 12 October 2007 (UTC) Max Elf 0×0 (53 KB) (Reverted to version as of 20:54, 24 September 2007)
• 20:56, 24 September 2007 (UTC) Tomruen 0×0 (51 KB) (One more try to make pretty)
• 20:54, 24 September 2007 (UTC) Tomruen 0×0 (53 KB) (Make dots bigger for better thumbnail appearance)
• 20:43, 24 September 2007 (UTC) Tomruen 0×0 (29 KB) (Motion of planet [[venus]] over 5 successive [[inferior conjunction]]s follows a [[pentagram]] pattern, precessing 2/5 of an orbit between conjunctions. [[Image:FullSkyAstronomySoftwareLogo.png|thumb]])