Month: January 2025

Pegasus Galaxy Cluster

NGC 7626 (179 LY) and NGC 7619 (152 LY)

7/30/2011 12:10-5:00 AM PST Latitude: 44° 2’ 07.73” North Longitude: 120° 50’ 43.21” West; 3855 ft. Juniper Acres, 30 miles East of Bend, OR Seeing: E Transparency: 6, Bortle: 2, SQM: 21.92 Telescopes / Optics: TEC 140mm f/7 Mount: AP1200 Camera: SBIG ST10xme CCD & CFW10 FOV: 52’ x 35’ FWHM: 2..24-2.95 Filter: Astrodon LRGB series E Gen.; L=98, RGB=8 ; total 3 Hours 8 min. Information: NGC 7626 & NGC 7619 & Galaxy Pegasus 1 Galaxy Group

Pegasus Galaxy Cluster 1, rates as one of the most distant objects (faintest) observable with normal amateur Telescopes. This image’s field of view is 52’ 16” x 35’ 5”, It was capture with TEC 5.5” f/7 refractor and SBIG ST10XME at 1.436 arcseconds per pixel. In perspective the full moon is approximately 33’ 57”, about a half of a degree. This Galactic Cluster has an estimated diameter of 6.3 degrees. Currently composed of 13 galaxies (down from original 23) with firm evidence that it hosts an ongoing merger. The map of this image lists some of the galaxies in this image, I have counted 284. Do to its 12.7 magnitude, one needs 10” telescope to observe it visually.

Recent Data from the Gemini + GMOS imaging Globular Clusters fo both NGC 7619 and NGC 7626 support this  (  LINK: https://www.gemini.edu/instrumentation/gmos/)

Pegasus Galaxy Cluster 1, is 175.3 (175,341,668.65 ) million lights years away consisting of 8-12 key members.  Also known as Pegasus 1 group 50Mpc

NGC 7626 and NGC 7619 (E3) Elliptical Galaxies  with a brightness of magnitude 11.2 (2.6×2.3) and 12.2 (2.6 x2.2) respectfully.  NGC 7626 is 151,956,256.37 Light years (Ly) away, while NGC 7619 is 179,222,929.54 Ly. 

Map of some galaxies in the Pegasus Cluster