Talk:Cat's Eye Nebula: Difference between revisions

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Revision as of 17:03, 8 October 2013

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Cat's Eye Nebula is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Misplaced Pages community. Even so, if you can update or improve it, please do so.

This article appeared on Misplaced Pages's Main Page as Today's featured article on June 15, 2005.

Article milestones
Date	Process	Result
January 9, 2005	Featured article candidate	Promoted
September 21, 2009	Featured article review	Kept

Current status: Featured article

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Astronomy: Astronomical objects FA‑class Mid‑importance

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Ambiguous sentence

From the article:

The image reveals two 'caps' of less ionised material at the edge of the nebula

Should it be read as that the material in these regions are less ionised compared to other regions; or that the concentration of ionised particles is lower, or something else?

If it is singly ionized nitrogen; does it have to be mentioned at all? In such case it is already mentioned in the text that green represents singly ionized nitrogen. Gunnar Larsson 19:03, 14 September 2006 (UTC)

Images

Why have they suddenly all disappeared? Several beautiful NASA public domain images have been deleted for no apparent reason.

The question has been here for a month, and no explanation offered.... were they just deleted for fun, then? 81.179.65.38 00:22, 23 December 2006 (UTC)

You don't want to have too many images--that's what Wikimedia Commons is for. I will add one more, though. It certainly is a beautiful thing.--MrFish 18:55, 7 May 2009 (UTC)

Age

Could someone please explain the discrepancy between the distance of 3300lj and the stated upper limit of the age for NGC6543 of only 1000 years? We would not be able to see this nebula if those values were correct. —Preceding unsigned comment added by 80.187.102.108 (talk) 12:22, 8 May 2011 (UTC)

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