Deep Sky Object in Spring
NGC3945 (Galaxy in Ursa Major)
|Date & Time: ||Dec 29 2014, from 26:41 to 27:25 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)|
NGC3945 is a minor galaxy with a long axis of 5 arc minutes positioned near midway between alpha and beta UMa.
The galaxy is classified in indistinct bared galaxies.
A bright nucleus is surrounded by rather dimmed region and furthermore very indistinct light encircles inner structures.
Medium-sized telescopes can show you only central features, it's difficult to detect outer dimmed part.
|NGC3945 / Galaxy, type (R)SB(rs)0+|
|R.A.||11h 53m 14.7s (2000.0)|
|Dec.||+60° 40' 36" (2000.0)|
|Distance||70 million light yrs.|
|Group of Galaxies||Ursa Major N Group|
|Other IDs||UGC6860, MCG10-17-96|