Deep Sky Object in Spring
M51 (Whirlpool Galaxy in Canes Venatici)
|Date & Time: ||Feb 3 2017, from 25:51 to 26:24 JST(+0900)
|Composed 12 shots with 3 minutes exposed|
|Optical: ||Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
|Auto-guided with Meade LX200 Equatorial & Pictor 201XT
|Digital Camera: ||Nikon D810A
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)|
|Sensitivity...ISO6400, White Balance...Daylight|
M51 (NGC5194), "The Whirlpool Galaxy", is the brightest and interesting galaxy in the constellation.
This spiral is found just 3 degrees SW of eta Ursae Majoris, a tip star of the Big Dipper's handle.
The galaxy is 25 million light years away; you'll need a large telescope and a fine evening to enjoy its detailed structure,
which includes an appendage system of NGC5195. Another galaxy seemingly hanging onto one of its arms.
|M51 (NGC5194) / Galaxy, type SA(s)bc pec I-II|
|R.A.||13h 29m 53.3s (2000.0)|
|Dec.||+47° 11' 48" (2000.0)|
|Distance||25.1 million light yrs.|
|Group of Galaxies||NGC5194 Group|
|Other IDs||UGC8493, MCG8-25-12, |
PGC47404, Arp 85
⇒ Display the spectral profile of M51 (in new window)
||Finding chart of M51
You can find M51 starting from eta UMa and via 24 CVn.
(Taken with f=200mm telephoto lens)