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) 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.
|M10 (NGC6254) / Globular Cluster, type VII|
|R.A.||16h 57m 6.0s (2000.0)|
|Dec.||-04° 05' 59" (2000.0)|
|Real Size||85 light yrs.|
|Distance||16,000 light yrs.|
The cluster has real size of about 85 light years, and about 16 thousand light years away.