Deep Sky Object in Summer
NGC6553 (Globular Cluster in Sagittarius)

Date & Time: May 2 2014, from 26:03 to 26:15 JST(+0900)
Composed 4 shots with 4 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with a conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Canon EOS 600D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)

NGC6553 / Globular cluster, type XI
R.A.18h 09m 17.3s (2000.0)
Dec.-25°54' 28" (2000.0)
Apparent Size9.2'
Real Size52 light yrs.
Distance19,600 light yrs.
This image shows you a medium-sized globular cluster in central region of Sagittarius, positioned only 2 degrees southeast of the Lagoon Nebula (M8). The cluster has a concentration class of XI, comparatively sparse stellar density, you can see individual stars in central part of the cluster.



Copyright(c) 2014 by Naoyuki Kurita, All rights reserved.
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