Deep Sky Object in Spring
NGC2742 & NGC2768 (Galaxies in Ursa Major)

Date & Time: Feb 16 2007, from 26:07 to 26:48 JST(+0900)
Composed 4shots with 10 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon with conversion lens (f=762mm, F4.6)
Auto-guided with TAKAHASHI JP Equatorial & Meade Pictor 201XT
Digital Camera: Nikon D70 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3008×2000)
CCD Sensitivity...ISO800

NGC2742 / Galaxy, type SA(s)c:
R.A.09h 07m 33.2s (2000.0)
Dec.+60°28' 46" (2000.0)
Apparent Size3.0×1.5'
Radial Velocity+1273km/s
Distance75 million light yrs.
Group of GalaxiesNGC2768 Group
Other IDsUGC 4779, CGCG 288-19
MCG +10-13-57, PGC 25640
IRAS 9036+6040
NGC2768 / Galaxy, type E6:
R.A.09h 11m 37.7s (2000.0)
Dec.+60°02' 22" (2000.0)
Apparent Size8.1×4.2'
Radial Velocity+1335km/s
Distance75 million light yrs.
Group of GalaxiesNGC2768 Group
Other IDsUGC 4821, CGCG 288-26
MCG +10-13-65, PGC 25915
This image shows you two medium sized galaxies at the throat of the Big Bear (Ursa Major), a spiral one in northwest (upper right) has a number of NGC2742 and another one in southeast (lower left) is elliptical NGC2768. Both galaxies are paralleling with an interval of about 40 arc minutes, NGC2768 is conspicuous because the galaxy has bigger size and brighter nucleus. They're forming a small scaled galactic group, the distance is estimated about 70 millions light years.



Copyright(c) 2007 by Naoyuki Kurita, All rights reserved.
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