Deep Sky Object in Autumn
NGC225 (Open Cluster in Cassiopeia)


Date & Time: Dec 29 2018, from 19:14 to 19:35 JST(+0900)
Composed 8 shots with 3 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)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


NGC225 (Cr 7) / Open cluster, type III 1 p n
R.A.00h 43m 30.0s (2000.0)
Dec.+61°47' 00" (2000.0)
Apparent Size12.0'
Real Size7.5 light yrs.
# of Stars15
Magnitude7.0
Distance2100 light yrs.
NGC225 is a sparse open cluster positioned at 2 degrees northwest of gamma Cas. About 15 member stars are grouped in a span of 12 arc minutes. We can appreciate the cluster only with small scopes; it may hard to distinguish from surrounding fine stars of the Milky Way. In this image, you can detect a dimmed gaseous matter floating in the northern region of the cluster.



NGC129
NGC457

Copyright(c) 2019 by Naoyuki Kurita, All rights reserved.
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