NGC 7635 The Bubble Nebula deep close-up (Mathieu Guinot)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · NGC 7635

NGC 7635 The Bubble Nebula deep close-up, Mathieu Guinot

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NGC 7635 The Bubble Nebula deep close-up

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NGC 7635 The Bubble Nebula deep close-up

Hi all,

I went deep into this one i never did before. I took a lot of exposures in order to optimize the Drizzle and weighting and get the maximum details in that awesome target.

NGC 7635, or Caldwell 11, is an HII region emission nebula in the constellation Cassiopeia. The "bubble" is created by the stellar wind from the massive hot young central star SAO 20575 . The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.

Of course it is an heavy crop with Drizzle processing, as the fov is far bigger at 1000mm focal length.
FWHM was very good on a lot of subs, with the best at 1.39" and the highest selectionned at 2", and i am happy with the fine details i was able to get as well as the faint surroundings nebulosities on the 3 layers, thanks to the 50h exposures, giving nice color shades.

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Status	Basic success
Started	...
Astrometry.net job	8479956
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 7635 The Bubble Nebula deep close-up

NGC 7635 The Bubble Nebula deep close-up

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NGC 7635 The Bubble Nebula deep close-up

NGC 7635 The Bubble Nebula deep close-up

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