NGC 7331 & Stephan's Quintet | Craig & Tammy Temple

Craig & Tammy Temple
Location of photo
Hendersonville, TN, USA
Date/Time of photo
October 7, 8 & 9, 2013
Telescope: Stellarvue Raptor SVR105 @ f/7 Accessories: Stellarvue SFF7-21 flattener; Dew control by Dew Buster; Alnitak Flat-Man Mount: Takahashi EM-200 Temma2 Camera: QSI583wsg CCD @ -10.0C Guiding: Starlight Xpress Lodestar via PHD Filters: Astrodon Tru-balance E-Series Generation II LRGB Exposure: 25 x 10min.(L) binned 1x1; 10 x 10min. each (R, G, & B) binned 2x2 Acquisition: ImagesPlus Camera Control v4.3 Processing: PixInsight 1.8 Post-processing: PixInsight 1.8; Adobe Photoshop CS5
NGC 7331 is the large spiral galaxy to the lower left in this image. This galaxy is the largest member of the group of galaxies know as the Deer Lick Group. It has an apparent magnitude of 10.4 and lies in the constellation Pegasus at a distance of about 40 megalight-years away. This galaxy was discovered by William Herschel in 1784. The small galaxy group to the upper right is known as Stephan’s Quintet. It was discovered by Edouard Stephan in 1877 at Marseilles Observatory. The group consists of five galaxies which form the first compact galaxy group ever discovered.
All comments must follow the Sky & Telescope Terms of Use and will be moderated prior to posting. Please be civil in your comments. Sky & Telescope reserves the right to use the comments we receive, in whole or in part, and to use the commenter’s username, in any medium. See also the Terms of Use and Privacy Policy.


This site uses Akismet to reduce spam. Learn how your comment data is processed.