NGC 541
| Galaxy NGC 541 |
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|---|---|
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| SDSS image of NGC 541 with nearby fragments (e.g. Minkowski's object) | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 25 m 44.3 s |
| declination | -01 ° 22 ′ 46 ″ |
| Appearance | |
| Morphological type | cD; S0- |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 1.8 ′ × 1.7 ′ |
| Position angle | 54 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Affiliation | Abell 194 |
| Redshift | 0.018086 ± 0.000019 |
| Radial velocity | (5422 ± 6) km / s |
|
Stroke distance v rad / H 0 |
(245 ± 17) · 10 6 ly (75.0 ± 5.3) Mpc |
| history | |
| discovery | Heinrich Louis d'Arrest |
| Discovery date | October 30, 1864 |
| Catalog names | |
| NGC 541 • UGC 1004 • PGC 5305 • CGCG 385-128 • MCG + 00-04-137 • 2MASX J01254430-0122461 • Arp 133 • GC 5178 • LDCE 89 NED014 | |
NGC 541 = Arp 133 is an elliptical galaxy of the Hubble type E-S0 constellation Cetus south of the celestial equator . It is estimated to be 245 million light years from the Milky Way and about 130,000 light years in diameter.
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of elliptical galaxies with nearby fragments (Arp catalog) . In the same area of the sky are u. a. the galaxies NGC 535 , NGC 543 , NGC 545 , NGC 547 .
The object was discovered on October 30, 1864 by the German-Danish astronomer Heinrich Louis d'Arrest .
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