NGC 943
| Galaxy NGC 943 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 29 m 09.7 s |
| declination | -10 ° 49 ′ 41 ″ |
| Appearance | |
| Morphological type | S0 + |
| Brightness (visual) | 12.9 mag |
| Brightness (B-band) | 13.9 likes |
| Angular expansion | 2.8 ′ × 1.3 ′ |
| Position angle | 15 ° |
| Surface brightness | 14.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.015631 ± 0.000090 |
| Radial velocity | 4686 ± 27 km / s |
|
Stroke distance v rad / H 0 |
(209 ± 15) x 10 6 ly (64.0 ± 4.5) Mpc |
| history | |
| discovery | Frank Muller |
| Discovery date | 1886 |
| Catalog names | |
| NGC 943 • PGC 9458 • MCG -02-07-018 • 2MASX J02290967-1049407 • Arp 309 • VV 217a • GALEX ASC J022909.65-104939.4 • LDCE 177 NED003 • HOLM 059B | |
NGC 943 is a lenticular galaxy of Hubble type S0 in the constellation Cetus south of the ecliptic . It is estimated to be 209 million light years away from the Milky Way and has a diameter of around 105,000 ly. Together with NGC 942 , it forms the interacting galaxy pair Arp 309 or Holm 59 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This pair of galaxies belongs to the class Unclassified double galaxies .
In the same area of the sky are the galaxies NGC 945 , NGC 948 , NGC 950 , IC 230 .
The property was discovered by Frank Muller in 1886 .
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
Web links
Commons : NGC 943 - collection of images, videos, and audio files
