Deep Sky Object in Spring
Abell 1795 (Galaxy Cluster in Bootes)

Date & Time: Apr 5 2008, from 25:33 to 26:27 JST(+0900)
Composed 6 shots with 10 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1760mm, F6.9)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Nikon D80 (Remodeled)
Location: Ooizumi vil., Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3872×2592)
CCD Sensitivity...ISO1600

Abell 1795 / Galaxy Cluster, type 2 4 I
R.A.13h 49m (rough position)
DEc.+26° 35' (rough position)
Apparent Size15.7'
# of Galaxies115
Red Shift0.0619
Distance840 million light yrs.
Supergalactic clusterBootes supercluster
Abell 1795 is a galaxy cluster lying about 2.5 degrees southeast of a globular cluster M3. The galaxy cluster has been belonged to the Bootes supergalaxy cluster, the distance is estimated about 840 millions light years. A dimmed elliptic a bit lower from the center of image is CGCG162-10 (15.2nd magnitude in brightness), a principal galaxy in the cluster. All small lump of light distributed around the galaxy are members of the cluster, has been counted 115 galaxies in span of about 15 arc minutes.

Coma Cluster


Copyright(c) 2008 by Naoyuki Kurita, All rights reserved.
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