Deep Sky Object in Summer
M10 (Globular Cluster in Ophiuchus)


Date & Time: Apr 16 2004, from 24:50 to 25:03 JST(+0900)
Composed 2 shots with 5 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Fujifilm FinePix S2 Pro
Location: Ooizumi vil., Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3024×2016)
CCD Sensitivity...ISO1600, White Balance...Auto




M10 (NGC6254) / Globular Cluster, type VII
R.A.16h 57m 6.0s (2000.0)
Dec.-04° 05' 59" (2000.0)
Apparent Size8.2'
Real Size85 light yrs.
Magnitude6.7
Distance16,000 light yrs.
M10 (NGC6254) is a small globular cluster found out at body of Ophiuchus. It looks like tiny explosions of star with dense core; large telescopes are needed to resolve the individual stars.
The cluster has real size of about 85 light years, and about 16 thousand light years away.




M9

M12


Copyright(c) 2004 by Naoyuki Kurita, All rights reserved.
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