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 (NGC6402) / Globular Cluster, type VIII
R.A.17h 37m 35.9s (2000.0)
Dec.-03° 15' 00" (2000.0)
Apparent Size3.0'
Real Size55 light yrs.
Distance23,000 light yrs.
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.
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.

M13(The Hercules Cluster)


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