Talk:Kepler-9c

Kepler-9c has been listed as one of the Natural sciences good articles under the good article criteria. If you can improve it further, please do so. If it no longer meets these criteria, you can reassess it.

Kepler-9c is part of the Kepler-9 series, a good topic. This is identified as among the best series of articles produced by the Wikipedia community. If you can update or improve it, please do so.

Article milestones
Date	Process	Result
February 17, 2011	Good article nominee	Not listed
February 27, 2011	Good article nominee	Listed
May 11, 2011	Good topic candidate	Promoted
A fact from this article appeared on Wikipedia's Main Page in the "Did you know?" column on February 20, 2011. The text of the entry was: Did you know ... that exoplanet Kepler-9c* has an orbit that decreases by 39 minutes every time it circles its star?*
Current status: Good article

Image[edit]

Although the text states that the planet is about 15% the size of Jupiter, looking at the image in the infobox one gets the impression that it's only 15% smaller, which is a different thing. Could somebody with more knowledge than me about this check this please (before it goes active on DYK preferably). --Crusio (talk) 00:17, 19 February 2011 (UTC)[reply]

You are correct. The page author confused Kepler 9-c with Kepler 9-d. JEH (talk) 18:23, 20 February 2011 (UTC)[reply]

I have to be more careful. I will be in the future. --Starstriker7^(Talk) 05:46, 22 February 2011 (UTC)[reply]

Orbit Shortening[edit]

The periodical variations are oscillatory, as stated even in the MSNBC article. That means the shortening of the orbital period will eventually be reversed. I clarified some of the statements which unfortunately had already found their way onto the Main Page. —Preceding unsigned comment added by 68.44.40.236 (talk) 19:19, 20 February 2011 (UTC)[reply]

As the article currently stands, the "stable orbit" is shortened by 39 minutes each "year", with no oscillation mentioned.--Wetman (talk) 20:49, 20 February 2011 (UTC)[reply]

External links modified[edit]

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