Deep Sky Object in Spring
NGC4157 (Galaxy in Ursa Major)
|Date & Time: ||Jan 15 2016, from 25:00 to 26:12 JST(+0900)
|Composed 8 shots with 10 minutes exposed|
|Optical: ||Meade 25cm(10") Schmidt-Cassegrain with a conversion lens (f=1600mm, F6.3)
|with BaaderPlanetarium UV/IR cut filter|
|Auto-guided with Meade LX200 Eqatorial & 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)|
NGC4157 is an edge-on galaxy in the constellation of Ursa Major.
You can find out uncountable small galaxies in this star field, it's difficult to identify individuals.
You can catch this minor one around midway of M109 and M106, two major galaxies with Messier's ID.
|NGC4157 / Galaxy, type SAB(s)b? sp II|
|R.A.||12h 11m 4.8s (2000.0)|
|Dec.||+50° 29' 10" (2000.0)|
|Distance||70 million light yrs.|
|Group of Galaxies||Ursa Major N Group|
|Other IDs||UGC7183, MCG9-20-106|
The galaxy has an apparent size of 6×1 arc minutes and fainter than 12th magnitude.
This image shows you a very inconspicuous central nucleus.