NGC7635 the Bubble Nebula (Lluis Romero Ventura)

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

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NGC7635 the Bubble Nebula

Link: https://www.flickr.com/photos/llromero/31458909550/in/dateposted-friend/

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NGC7635 the Bubble Nebula

Link: https://www.flickr.com/photos/llromero/31458909550/in/dateposted-friend/

NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575 (BD+60°2522). 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. It was discovered in 1787 by William Herschel. The star BD+60°2522 is thought to have a mass of about 44 M☉.

With an 8 or 10-inch (250 mm) telescope, the nebula is visible as an extremely faint and large shell around the star.

The nearby 7th magnitude star on the west hinders observation, but one can view the nebula using averted vision.[6] Using a 16 to 18-inch (460 mm) scope, one can see that the faint nebula is irregular, being elongated in the north south direction.

Source: Wikipedia

DETAIL PHOTO:

Location: Àger-Lleida-Spain

Dates: 06-07 Sep 2016 & 30-31 Oct 2016 & 2-6 Dec 2016

SQM: 21 - 21.4

Telescope: GSO RC14” Truss f8

Camera: Moravian G3-11000 classe 2

Focuser: Feather Touch 3” Kit boss II

Flattener: TSFlattener 2.5”

Filters: Astrodon LRGB Gen2 I-Series True-Balance

Exposures: L:22x600 sec bin1 R:G:B: 17:17:17 seg x 900 sec bin2

H-alpha: 34 x 900 sec bin1

Total Exposure: 20.6 h

Processing: Pixinsight & Photoshop CC 2015.5

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic success
Started	...
Astrometry.net job	1381844
PixInsight job	n/a
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NGC7635 the Bubble Nebula

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