Deep Sky Object in Spring
M100 (Galaxy in Coma Berenices)
|Date & Time: ||Dec 6 2013, from 27:40 to 28:23 JST(+0900)
|Composed 8 shots with 6 minutes exposed|
|Optical: ||Meade 25cm(10") Schmidt-Cassegrain with 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)|
M100 is one of bright spiral galaxies belonging to the Virgo Cluster spreading around Virgo and Coma Berenices.
The galaxy is lying at the northern edge of the cluster in the Coma Berenices, has a size of about 5 arc minutes and a magnitude of 10.
|M100(NGC4321) / Galaxy, type SAB(s)bc I|
|R.A.||12h 22m 55.2s (2000.0)|
|Dec.||+15° 49' 23" (2000.0)|
|Distance||53 million light yrs.|
|Group of Galaxies||Virgo Cluster|
|Other IDs||UGC7450, MCG3-32-15|
M100 is a typical spiral galaxy being two arms coiled up loosely, we're overlooking the galaxy its bulge; so-called the face-on galaxy.
It looks like a shrinked Pinwheel Galaxy M101 in the Ursa Major.
M100 is about 41 million light years away from our Galaxy.