NGC7331 and The Deerlick Group of Galaxies


NGC7331 (largest galaxy in the field)
Deerlick Group (cluster of small galaxies right around 7331)
Scope: Planewave 12.5" CDK
Mount: Paramount ME (MKS5000)
Camera: Apogee U16M w Astrodon Gen II Filters
9 x 10 min Luminance
6/6/6 x 10 min RGB
Acquired using CCD-Commander and TheSkyX
Post processing in PixInsight: calibration, cosmetic correction, align & stack, colour calibration, noise reduction, gradient removal.
Additional clean-up in PS CC 2018

Click on the image to see it at 50% of the original.

RA: 22h 37.1'
Dec: 34:25
Visual Mag: 9.5
11 x 4 arcminutes


Discovered by William Herschel in 1784.

NGC 7331 is one of the brighter galaxies which is not included in Messier's catalog. It exposes a fine spiral structure despite its small inclination from the edge-on position. Several companions and background galaxies are visible even in our photo. NGC 7331 was among the earliest recognized spiral galaxies, and listed by Lord Rosse in his list of 14 "spiral or curvilinear nebulae" discovered before 1850.


Lucknow, Ontario
Oct 13/14 2018