NGC 161
| Galaxy data from NGC 161 |
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|---|---|
![NGC 161 & IC 1557 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC161_-_SDSS_DR14.jpg)
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| NGC 161 & IC 1557 SDSS image | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 35 m 33.9 s |
| declination | -02 ° 50 ′ 55 ″ |
| Appearance | |
| Morphological type | S0 ^ 0 ^: |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.4 mag |
| Angular expansion | 1.3 ′ × 0.8 ′ |
| Position angle | 27 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.020311 ± 0.000143 |
| Radial velocity | +6089 ± 43 km / s |
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Stroke distance v rad / H 0 |
(276 ± 19) · 10 6 ly (84.5 ± 5.9) Mpc |
| history | |
| discovery | Lewis A. Swift |
| Discovery date | November 21, 1886 |
| Catalog names | |
| NGC 161 • PGC 2131 • MCG -01-02-036 • 2MASX J00353394-0250555 • GALEX ASC J003533.88-025053.9 • LDCE 29 NED004 | |
NGC 161 is a lenticular galaxy of the Hubble type S0 in the constellation Whale south of the ecliptic . It is estimated to be 276 million light years from the Milky Way and about 105,000 light years in diameter . Together with IC 1557 it probably forms a gravitationally bound galaxy pair.
The galaxies IC 29 , IC 30 , IC 32 , IC 33 are located in the same area of the sky .
The object was discovered on November 21, 1886 by the American astronomer Lewis A. Swift .
Web links
Commons : NGC 161 - collection of images, videos, and audio files
