Deep Sky Object in Spring
NGC3642 (Galaxy in Ursa Major)


Date & Time: Dec 29 2014, from 25:46 to 26:30 JST(+0900)
Composed 8 shots with 6 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




NGC3642 / Galaxy, type SA(r)bc:
R.A.11h 22m 17.7s (2000.0)
Dec.+59°04' 27" (2000.0)
Apparent Size5.3×4.4'
Radial Velocity+1623km/s
Magnitude11.7
Distance90 million light yrs.
Group of GalaxiesNGC3642 Group
Other IDsUGC 6385, CGCG 291-62
MCG +10-16-128, IRAS 11194+5920
PGC 34889
This image shows you a medium-sized face-on galaxy with 11th magnitude in brightness and 5 arc minutes in apparent diameter positioned in the Big Dipper of the constellation of Ursa Major. You can see a bright nucleus and surrounding unevolved arms. The galaxy is forming a small-scaled galaxy group with compact galaxies, about 90 million light years away.




NGC3631

NGC3675


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