NGC 2944

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Galaxy
NGC 2944
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NGC 2944 with LEDA 1990710 (lu) & LEDA 27534 [1] SDSS image
NGC 2944 with LEDA 1,990,710 (lu) & LEDA 27534 SDSS uptake
AladinLite
Constellation lion
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 09 h 39 m 18.2 s
declination + 32 ° 18 ′ 30 ″
Appearance
Morphological type SB (s) c  
Brightness  (visual) 14.1 mag
Brightness  (B-band) 14.8 mag
Angular expansion 1 ′ × 0.4 ′
Position angle 95 °
Surface brightness 13 mag / arcmin²
Physical data
Redshift 0.022676 ± 0.000027  
Radial velocity 6798 ± 8 km / s  
Stroke distance
v rad  / H 0
(302 ± 21)  ·  10 6  ly
(92.6 ± 6.5)  Mpc 
history
discovery Johann Palisa
Discovery date March 27, 1886
Catalog names
NGC  2944 • UGC  5144 • PGC  27533/4 • CGCG  181-078 • MCG  + 06-21-067 • IRAS  09363 + 3232 • Arp  63 • VV  82 • USGC U245 NED04

NGC 2944 = Arp 63 is an interacting galaxy trio in the constellation Leo on the ecliptic . The main galaxy is an estimated 302 million light years away from the Milky Way and is approximately 90,000 light years across. At the end of its spiral arms it interacts with the smaller objects PGC 1990710 and PGC 27534 ( Arp 63 ).

Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class spiral galaxies with a small companion of high surface brightness on one arm (Arp catalog) .

In the same area of ​​the sky are u. a. the galaxies NGC 2926 and NGC 2964 .

The object was discovered by Johann Palisa on March 27, 1886 .

Web links

Commons : NGC 2944  - collection of images, videos, and audio files

literature

  • Jeff Kanipe and Dennis Webb: The Arp Atlas of Peculiar Galaxies - A Chronicle and Observer's Guide , Richmond 2006, ISBN 978-0-943396-76-7

Individual evidence

  1. ^ Aladin Lite
  2. a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  3. a b c d e f SEDS : NGC 2944
  4. Seligman