Deep Sky Object in Spring
M68 (Globular Cluster in Hydra)


Date & Time: Jan 24 2015, from 27:32 to 27:55 JST(+0900)
Composed 8 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)
Sensitivity...ISO3200


M68 (NGC4590) / Globular Cluster, type X
R.A.12h 39m 30.0s (2000.0)
Dec.-26° 45' 00" (2000.0)
Apparent Size2.9'
Real Size42 light yrs.
Magnitude7.6
Diatance37 thousand light yrs.
M68 is a small-scaled globular cluster hided in the body of Hydra. Though the cluster belongs to a constellation of Hydra, it's easy to search it from stars of Corvus. M68 can be found by stretching the eastern edge of square of Corvus southward. The cluster is very sparse; you can detect individual stars only with small telescopes.



M53
Intergalactic Wanderer(NGC2419)

Copyright(c) 2015 by Naoyuki Kurita, All rights reserved.
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