Deep Sky Object in Summer
Abell 2162 (Galaxy Cluster in Corona Berealis)


Date & Time: Feb 23 2020, from 27:43 to 28:49 JST(+0900)
Composed 12 shots with 6 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


Abell 2162 / Galaxy Cluster, type 0 1 II-III
R.A.11h 10m 48.0s (2000.0)
Dec.+29°32' 00" (2000.0)
Apparent Size56.0'
# of Galaxies37
Red Shift0.0310
Magnitude13.7
Distance425 million light yrs.
Galactic superclusterHercules supercluster
This mage has captured a small-scaled galaxy cluster hidden at 2.5 degrees east of iota CrB, the most eastern star of Corona Borealis. The cluster contains a little less than 40 member galaxies in a span of 56 arc minutes; the almost all field of view of the image has been occupied with the field of this cluster. However almost of the members are tiny and indistinct; you can recognize only two galaxies of NGC6085 and NGC6086 paralleled in north south direction. The cluster is forming the Hercules supercluster with member clusters distributed in a neighbored constellation of Hercules.
Numbers with 4 digits represent NGC #



Hercules Cluster(Abell 2151)
Abell 2197

Copyright(c) 2020 by Naoyuki Kurita, All rights reserved.
To top page To Deepsky in Summer index Corona Berealis