Deep Sky Object in Summer
The Corona Cluster (Abell 2065)
|Date & Time: ||Mar 16 2018, from 27:09 to 28:05 JST(+0900)
|Composed 12 shots with 5 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 & Pictor 201XT
|Digital Camera: ||Nikon D810A
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)|
|Sensitivity...ISO4000, White Balance...Daylight|
It's a very deep sky object of galactic cluster hidden in western Corona Borealis.
Several indistinct light spots in center of this picture are individual member galaxies.
It's recognized about 100 galaxies are included in span of 10 arc minutes.
The cluster is about 860 million light years away and has a visual brightness of 15th magnitude.
|Abell 2065 / Galaxy Cluster, type 2 3 III|
|R.A.||15h 23m (rough position)|
|Dec.||+27° 43' (rough position)|
|# of Galaxies||109|
|Distance||860 million light yrs.|
|Supergalactic Cluster||Corona Supergalactic cluster|
To image without stars