Deep Sky Object in Summer
M14 (Globular Cluster in Ophiuchus)
|Date & Time: ||Apr 17 2004, from 25:53 to 26:00 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|
M14 is a small sized globular cluster, easternmost in three globulars with Messier's number (M10, M12 and M14) in a pentagon of Ophiuchus.
M14 is lying at the west coast of the Milky Way in summer; so uncountable fine stars surround the cluster.
|M14 (NGC6402) / Globular Cluster, type VIII|
|R.A.||17h 37m 35.9s (2000.0)|
|Dec.||-03° 15' 00" (2000.0)|
|Real Size||55 light yrs.|
|Distance||23,000 light yrs.|
The cluster has a fairly stellar density, you might need a telescope over 4" to resolve the individual stars.
The cluster has a real size of about 55 light years and a distance of 23 thousand light years.