Deep Sky Object in Winter
UGC3697 (Galaxy in Camelopardalis)
|Date & Time: ||Dec 12 2009, from 26:27 to 27:28 JST(+0900)
|Composed 6 shots with 12 minutes exposed|
|Optical: ||Meade 25cm(10") Schmidt Cassegrain with a conversion lens (f=1760mm, F7.1)
|Auto-guided with Meade LX200 Equatorial & Pictor 201XT
|Digital Camera: ||Nikon D50 (Remodeled)
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3008×2000)|
UGC3697, positioned in central region of Camelopardalis, is a small but unique-shaped galaxy.
The galaxy has a nickname of "Integral Sign Galaxy", clearly we can understand reason of the name.
It's not striking because the galaxy has a long axis of 3 arc minutes and 13th magnitude in brightness, but comparatively known from its peculiar shape.
|UGC3697 / Galaxy, type Sd: pec|
|R.A.||07h 11m 21.4s (2000.0)|
|Dec.||+71° 50' 11" (2000.0)|
|Distance||140 million light yrs.|
|Group of Galaxies|| -|
|Other IDs||CGCG 330-26, MCG +12-7-28|
IRAS 7055+7155, PGC 20348
Although it's not clear what made the galaxy's disk warped,
one of hypotheses says the gravitational interaction caused by collision with a companion galaxy is reason of this unique shape.
UGC 3697 is lying about 140 millions light years away.