Deep Sky Object in Summer
NGC6642 (Globular Cluster in Sagittarius)

Date & Time: Sep 20 2014, from 19:43 to 19:58 JST(+0900)
Composed 6 shots with 3 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)

NGC6642 / Globular Cluster
R.A.18h 31m 54.3s (2000.0)
Dec.-23°28' 35" (2000.0)
Apparent Size5.8'
Real SizeN/A
NGC6642 is a small globular cluster lying only a degree northwest M22, a splendid globular cluster in Sagittarius. NGC6642 has a size of about only 6 arc minutes, not a major object in this star field. The constellation of Sagittarius has includes the center of Galaxy, uncountable globular clusters have distributed in it.



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