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Contains:  Bubble nebula, NGC 7538, NGC 7635, NGC7538, NGC7635, Sh2-157, Sh2-158, Sh2-159, Sh2-162
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Bubble Nebula (NGC7635) and west surroundings in HSTrgb, 


            Jose Carballada
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Bubble Nebula (NGC7635) and west surroundings in HSTrgb

Technical card

Dates:Aug. 21, 2017Oct. 11, 2017Aug. 11, 2018Aug. 21, 2018

Astrodon B Gen.2 E-series 36mm: 24x10" (gain: 200.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 21x10" (gain: 200.00) -20C bin 1x1
Astrodon HA 36mm - 5nm: 46x300" (gain: 200.00) -20C bin 1x1
Astrodon O-III 36mm - 5nm: 15x300" (gain: 200.00) -20C bin 1x1
Astrodon R Gen.2 E-series 36mm: 23x10" (gain: 200.00) -20C bin 1x1
Astrodon S-II 36mm - 5nm: 15x300" (gain: 200.00) -20C bin 1x1

Integration: 6.5 hours

Avg. Moon age: 15.17 days

Avg. Moon phase: 35.21% job: 2226092

RA center: 23h 16' 58"

DEC center: +60° 49' 41"

Pixel scale: 2.942 arcsec/pixel

Orientation: -89.214 degrees

Field radius: 1.191 degrees

Resolution: 2328x1760

Locations: Berga Resort, Berga, Barcelona, Spain

Data source: Backyard


NGC 7635, also known as the Bubble Nebula (at the bottom of the picture), 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.
NGC 7538, (at the top left of the picture) is located about 9,100 light-years from Earth. It is home to the biggest yet discovered protostar which is about 300 times the size of the Solar System.
(Description credits: Wikipedia)



Jose Carballada
License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


Bubble Nebula (NGC7635) and west surroundings in HSTrgb, 


            Jose Carballada