Deep Sky Object in Autumn
Abell 151 (Galaxy Cluster in Cetus)


Date & Time: Nov 28 2021, from 20:18 to 21:15 JST(+0900)
Composed 15 shots with 4 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 151 / Galaxy Cluster, type 1 3 II:
R.A.01h 08m 48.8s (2000.0)
Dec.-15° 25' 28" (2000.0)
Apparent Size39.2'
# of Galaxies72
Red Shift0.0521
Magnitude15.0
Distance710 million light yrs.
Supergalactic clusterPisces-Cetus supercluster
A medium scaled galaxy cluster at about 5.5 degrees south of eta Ceti is Abell 151. The cluster has about 70 member galaxies with a central galaxy of IC77. Abell 151 is one of galaxy clusters organizing Pisces-Cetus supercluster lying about 710 millions light-years away, distributed in autumnal southern skies.



Abell 119
Abell 168

Copyright(c) 2021 by Naoyuki Kurita, All rights reserved.
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