Deep Sky Object in Spring
NGC2403 (Galaxy in Cameropardalis)
|Date & Time: ||Nov 29 2013, from 25:17 to 26:01 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 & Meade 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)|
NGC2403 is a galaxy 8 degrees north-west of omicron UMa that marks the nose of the Big Bear.
The galaxy is positioned in a minor constellation of Cameropardalis (The Giraffe); so it's hardly be paid attention,
but has sufficient size and visual magnitude worthy of being registered in Messier's catalogue.
It has an extent of 22 arc minutes in east-west direction and 12 arc minutes in north-south, and has magnitude of about 9.
|NGC2403 / Galaxy, type SAB(s)cd III|
|R.A.||07h 36m 54.5s (2000.0)|
|Dec.||+65° 35' 58" (2000.0)|
|Distance||11.8 million light yrs.|
|Group of Galaxies||NGC2403 Group|
|Other IDs||UGC3918, MCG11-10-7, |
NGC2403 is a typical face-on galaxy, and looks like a shrinked M33, a famous and splendid galaxy in Triangulum.
It's estimated that NGC2403 is lying about 12 million light years away.