The Coma Cluster (Abell 1656) is a large cluster of galaxies that contains over 1,000 identified galaxies. Along with the Leo Cluster (Abell 1367), it is one of the two major clusters comprising the Coma Supercluster. It is located in and takes its name from the constellation Coma Berenices.
The cluster’s mean distance from Earth is 99 Mpc (321 million light years). Its ten brightest spiral galaxies have apparent magnitudes of 12–14 that are observable with amateur telescopes larger than 20 cm. The central region is dominated by two supergiant elliptical galaxies: NGC 4874 and NGC 4889. The cluster is within a few degrees of the north galactic pole on the sky. Most of the galaxies that inhabit the central portion of the Coma Cluster are ellipticals. Both dwarf and giant ellipticals are found in abundance in the Coma Cluster. Wikipedia
Imaging Data
Image: ABELL 1656
Date: 5/26/2021
Exposure: 300s
Number of Lights: 40 for 3 hours 20 minutes
Darks: No
Flats: No
Gain: 120
Binning: 1×1
Imaging Software: Sequence Generator Pro
Camera Type: ZWO ASI294MC Pro
Cooling Temp: -10 deg C
Filter: STC Astro Duo-Narrowband Filter
Telescope: Celestron 1100HD SCT
Mount : 10MICRON GM1000HPS
Focuser: MicroTouch Focuser