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Name / Constellation

NGC 7331

 Other: C 30, UGC 12113, MCG+06-49-045, H I-53, h 2172, GC 4815, CGCG 514.068, PGC 69327

Peg
Coordinates AR: 22h 37m 04,1s - Dec: +34° 24′ 56″
Optics Richtey-Chretien Officina Stellare 10"@F8 Carbon Truss
Camera-Mount SBIG ST10XME/CFW10 - ZWO ASI1600MM guider (ONAG) - 10Micron GM2000 QCI Mount
Filters Astrodon LRGB TruBalance (Gen 2)
Exposure
  • Luminance
  • Red
  • Green
  • Blue
  • 23 x 900 sec - 5 hours 45 min
  • 9 x 600 sec - 90 minutes
  • 9 x 600 sec - 90 minutes
  • 9 x 600 sec - 90 minutes
  • UNBINNED
  • BINNING 2X2
  • BINNING 2X2
  • BINNING 2X2
Location / Date Promiod (Valle D'Aosta-Italy) "TLP" Remote Observatory - Aug 2023
Seeing About 2.5 " - 0.71 arcosec/pixel image scale unbinned
Note  
Acquisition N.I.N.A.
Processing Adobe Photoshop CS5 -
Comment

 

NGC 7331 (also known as C 30) is a spiral galaxy visible in the constellation of Pegasus.
It is located 4 degrees NNW of the bright star η Pegasi; in small instruments it appears as a bright trail arranged in a N-S direction, slightly brighter at the center. The arms, visible with larger instruments, are faint and open towards the south; the structure and dimensions are similar to those of the Milky Way, to the point that this galaxy is sometimes referred to as the "twin of the Milky Way".[1] In 1959 a type IIL supernova, 1959D, exploded, reaching magnitude 3.4, and in 2013 another type II supernova, 2013bu, which reached 16.6.[2][3] Clear starburst phenomena can be observed within it; it is about 45 million light-years away from the Milky Way.