NGC 143
| Galaxy NGC 143 |
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|---|---|
![with NGC 143 (o), NGC 143 (m), NGC 144 (u) [1]](https://de.wikipedia.org/wiki/Datei:NGC_0144_DSS.jpg)
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| with NGC 143 (o), NGC 143 (m), NGC 144 (u) | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 31 m 15.62 s |
| declination | -22 ° 33 ′ 35.8 ″ |
| Appearance | |
| Morphological type | SB (r) b? / sp |
| Brightness (visual) | 14.5 mag |
| Brightness (B-band) | 15.3 mag |
| Angular expansion | 1 ′ × 0.2 ′ |
| Position angle | 20 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.026849 ± 0.000033 |
| Radial velocity | 8049 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(360 ± 25) x 10 6 ly (110.5 ± 7.7) Mpc |
| history | |
| discovery | Frank Muller |
| Discovery date | 1886 |
| Catalog names | |
| NGC 143 • PGC 1911 • ESO 473-G022 • MCG -04-02-015 • 2MASX J00311562-2233357 • SGC 002846-2250.2 • GALEXA SC J003115.53-223334.4 • LDCE 24 NED002 • NVSS J003115-223336 • WISEA J -223335.5 | |
NGC 143 is a barred spiral galaxy of the Hubble type SBb in the constellation Whale south of the ecliptic . It is estimated to be 360 million light years from the Milky Way and about 105,000 light years in diameter. Presumably, it forms a gravitationally bound galaxy trio together with NGC 142 and NGC 144 .
The object was discovered in 1886 by the American astronomer Frank Muller .