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Contains:  Bubble nebula, NGC 7635
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Bubble Nebula (NGC 7635), 


            Ara Jerahian
Bubble Nebula (NGC 7635)

Bubble Nebula (NGC 7635)

Technical card

Resolution: 4236x3048

Dates:Jan. 1, 2019

ZWO Ha 7nm 1.25": 23x180" (gain: 200.00) -20C bin 1x1
ZWO OIII 1.25" 7nm: 20x180" (gain: 200.00) -20C bin 1x1
ZWO SII 1.25" 7 nm: 25x180" (gain: 200.00) -20C bin 1x1

Integration: 3.4 hours

Darks: ~50

Flats: ~50

Flat darks: ~50

Bias: ~50

Avg. Moon age: 25.25 days

Avg. Moon phase: 19.31%

Bortle Dark-Sky Scale: 5.00

Temperature: -1.00 job: 2447480

RA center: 350.194 degrees

DEC center: 61.170 degrees

Pixel scale: 0.527 arcsec/pixel

Orientation: 212.640 degrees

Field radius: 0.382 degrees

Locations: Home, Cape Elizabeth, ME, United States

Data source: Backyard


NGC 7635, also known as the Bubble Nebula, is a H II region emission nebula in the constellation Cassiopeia. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude 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. It was discovered in 1787 by William Herschel.

This is my 2nd image ever, and first in color! No where near as awesome as most of the photos here on Astrobin, but I'm proud of my little bubble :)



Ara Jerahian
License: None (All rights reserved)

Sky plot

Sky plot


Bubble Nebula (NGC 7635), 


            Ara Jerahian

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