Deep Sky Object in Summer
M56 (Globular Cluster in Lyra)

Date & Time: Apr 12 2003, from 26:37 to 26:42 JST(+0900)
Composed 2 shots with 3 minutes exposed
Optical: VIXEN 20cm(7.9") VISAC with conversion lens (f=1278mm, F6.4)
Auto-guided with TAKAHASHI JP Equatorial & Meade 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

M56 (NGC6779) / Globular Cluster, type X
R.A.19h 16m 36.0s (2000.0)
Dec.+30° 11' 00" (2000.0)
Apparent Size5.0'
Real Size50 light yrs.
Distance34,000 light yrs.
M56 (NGC6729) is a tiny globular cluster lies near a border between Lyra and Cygnus. You'll be able to see a nebula-like view with telescopes, and you can recognize the individual stars around the edge in good atmospheric condition.
The constellation of Lyra has relatively small area, and two Messier objects in that, M56 and Ring Nebula (M57), are small, too. So it's hard to photograph those with being powerful.
M56 is approximately 34 thousand light years away.



Copyright(c) 2003 by Naoyuki Kurita, All rights reserved.
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