NGC 145
| Galaxy NGC 145 |
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|---|---|
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| SDSS image from NGC 145 | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 31 m 45.7 s |
| declination | -05 ° 09 ′ 10 ″ |
| Appearance | |
| Morphological type | SB (s) dm |
| Brightness (visual) | 12.7 mag |
| Brightness (B-band) | 13.3 mag |
| Angular expansion | 1.8 ′ × 1.5 ′ |
| Position angle | 57 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.013830 ± 0.000047 |
| Radial velocity | (4117 ± 14) km / s |
|
Stroke distance v rad / H 0 |
(188 ± 13) x 10 6 ly (57.7 ± 4.0) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | October 9, 1828 |
| Catalog names | |
| NGC 145 • PGC 1941 • MCG -01-02-027 • IRAS 00292-0525 • 2MASX J0031448-050908 • Arp 19 • GC 70 • h 27 and 2328 • | |
NGC 145 = Arp 19 is a barred spiral galaxy of the Hubble type SB (s) dm in the constellation Whale in the southern sky . It is around 188 million light years away from the Milky Way and has a diameter of around 100,000 light years .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of three-armed spiral galaxies (Arp catalog) . NGC 145 was discovered on October 9, 1828 by the British astronomer John Frederick William Herschel .
Web links
Commons : NGC 145 - 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