NGC 7635 : The Bubble Nebula

PPhotographs by Andy Strappazzon

 

 


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Messier Number:
-


NGC Number:
NGC 7635


Common Name:
Bubble Nebula


Constellation:
Cassiopea


Distance from Earth:
11300 light years


Visual Magnitude:
8.5


Size:
15'


Rate:

Description :
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, the 15 5 M 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 SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses. (Wikipedia)

Deepskystacker Live Results:








Date Taken:
27 December 2011


Location:
Italy - Celado

Weather:
Temp = -3C


Equipment:
Keller Mount
Newton 80cm Celado
Images aquired with: 

Canon 100D unfiltred + UV-IR Filter


Exposure Specs:
Lights: 
20x180 sec @ 800ISO

Darks: 
19x180 sec @ 800ISO

Flats: 25
Offsets: 30

Total Exposure: 1h00min


Processed with:
Deepskystacker
Pixinsight
Adobe Photoshop CS5

 

Copyright 2012, Andy Strappazzon. All rights reserved.