Talk:Retrograde and direct motion

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Im looking for an authoritative source that uses the term retrogradation. If there isn't such a source, I still like the idea of the word as it is defined here, but I'd like to know if this word is actually used atm. Lir 15:09 Nov 4, 2002 (UTC)

(three and a half years later), i removed the term 'retrogradation' from the article; a google search suggests it's meaning have more to do with chemistry. 131.111.8.102 15:23, 11 March 2006 (UTC)
Actually it simply means retrograde motion. Limiting it to apparent retrograde motions appears to have been unjustified. kwami 22:11, 11 March 2006 (UTC)

Contents

[edit] Orphan Mystical Paragraph

I removed:

In Religion
what is interesting here is to know that the religion of muslims (islam) talked about this motion through the prophet muhammed, by saying that sun someday will rise from west after three days of not rising and this will be a sign of groups of group of signs before the day of judgment.

Since this is way OT, having nothing to do with retrograde orbit (since this would have to affect rotation not orbit), and since prophecy doesn't lend itself to verification. Dominick 12:06, 30 Jun 2004 (UTC)

Something similar had showed itself, as an 'External Link'

"Muslims knew about this thousands of years ago. To read more go to http://www.shiaconnect.com/forum/showthread.php?t=223 (iam not advertising)."

I have removed it on the grounds that the tone is distinctly un-wikipedia-ish, and also, as a forum, the content may be volatile. A link along the same lines but to a proper website, not a forum, can certainly be added if someone can find it. 128.232.250.254 23:34, 23 May 2006 (UTC)

[edit] Circular reference

This article suggests looking at Retrograde for the musical term, but that now redirects to this article. What's up? Confusing Manifestation 16:51, 30 January 2006 (UTC)

That redirection and suggestion are now fixed. The Rod (☎ Smith) 18:25, 27 March 2006 (UTC)

[edit] Error in image

Like that ..
Like that ..

In the 2nd image ("Like that") with a retrograde motion, either the symbols A2 and A4 are swapped (if you start from left A1), or there are 2x A1 !

Well, I cannot edit swg graphics... Would you correct it?

[edit] Apparent Retrograde Motion

The article says that planets beyond the Earth's orbit appear to switch direction. I think it's true to say that the planets inside the Earth's orbit would also exhibit this behaviour as they periodically overtake the Earth, but it is not seen because it always occurs during the day time.

[edit] Retrograde motion.

Retrograde motion and venus. Remarkable. —Preceding unsigned comment added by Merwin21 (talk • contribs) 01:42, 22 November 2007 (UTC)