NGC 1141

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Galaxy
NGC 1141
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Image taken by the Hubble Space Telescope of the interacting galaxy pair Arp 118, which consists of NGC 1141 (right, top) and NGC 1144 (left, bottom).
Image taken by the Hubble Space Telescope of the interacting galaxy pair Arp 118, which consists of NGC 1141 (right, top) and NGC 1144 (left, bottom).
AladinLite
Constellation whale
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 02 h 55 m 09.7 s
declination -00 ° 10 ′ 40 ″
Appearance
Morphological type S0 pec (ring A)  
Brightness  (visual) 13.1 mag
Brightness  (B-band) 14.1 mag
Angular expansion 0.9 ′ × 0.7 ′
Position angle 110 °
Surface brightness 12.4 mag / arcmin²
Physical data
Redshift 0.028216 ± 0.000100  
Radial velocity (8459 ± 30) km / s  
Stroke distance
v rad  / H 0 		(378 ± 26)  ·  10 6  ly
(115.9 ± 8.1)  Mpc 
history
discovery Albert Marth
Discovery date October 5, 1864
Catalog names
NGC  1141 • UGC  2388 • PGC  11007 • CGCG  389-46 • MCG  + 00-08-47 • Arp  118 • VV  331b • GC  5287 • KCPG 83A • NGC 1143

NGC 1141 ( NGC 1143 ) is a lenticular galaxy in the constellation Whale that is listed in the New General Catalog (NGC).

The galaxy was discovered on October 5, 1864 by the German astronomer Albert Marth with a 122 cm reflector telescope and independently again in 1876 by the French astronomer Édouard Stephan with an 80 cm telescope. When the NGC was created, it was not recognized that both observations concern the same galaxy, which is why the first observation is recorded under the number 1141 and the later under 1143.

The galaxy NGC 1141 interacts violently with the galaxy NGC 1144, which is only 20 kpc away, and causes special kinematics in this, which leads to a strongly distorted spiral structure. The interacting galaxies are listed in the Atlas of Peculiar Galaxies as Arp 118 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of elliptical galaxies close to spiral galaxies and disturbing them (Arp catalog) .

Web links

Commons : NGC 1141  - 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. ↑ a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c d e f SEDS : NGC 1141
  3. ↑ Seligman
  4. ↑ Bransford, MA; Appleton, PN; McCain, CF; Freeman, KC: The HI and Ionized Gas Disk of the Seyfert Galaxy NGC 1144 = Arp 118: A Violently Interacting Galaxy with Peculiar Kinematics , bibcode : 1999ApJ ... 525..153B