NGC 175
| Galaxy NGC 175 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 37 m 21.5 s |
| declination | -19 ° 56 ′ 03 ″ |
| Appearance | |
| Morphological type | SB (r) ab / HII? |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.0 likes |
| Angular expansion | 2.1 ′ × 1.9 ′ |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.013043 ± 0.000022 |
| Radial velocity | 3910 ± 7 km / s |
|
Stroke distance v rad / H 0 |
(176 ± 12) · 10 6 ly (53.9 ± 3.8) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | October 20, 1784 |
| Catalog names | |
| NGC 175 • NGC 171 • PGC 2232 • ESO 540-006 • MCG -03-02-024 • IRAS 00348-2012 • 2MASX J00372152-1956032 • SGC 003452-2012.7 • VV 791a • GC 83 • GC 86 • H III-223 • h 2334 • HIPASS J0037-19 | |
NGC 171 = NGC 175 is a bar-spiral galaxy of the Hubble type SBab of the Hubble type Sab in the constellation Whale south of the ecliptic . It is estimated to be 176 million light years from the Milky Way and about 110,000 ly in diameter.
The type IIP supernova SN 2009hf was observed here.
The object was discovered on October 20, 1784 by the German-British astronomer Wilhelm Herschel . His son John Herschel also later observed this galaxy. However, the double observation was not recognized and so it was given the number NGC 171 .
Web links
Commons : NGC 175 - collection of images, videos, and audio files
