NGC 7140
| Galaxy NGC 7140 / NGC 7141 |
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|---|---|
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| AladinLite | |
| Constellation | Indus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 21 h 52 m 15.3 s |
| declination | -55 ° 34 ′ 11 ″ |
| Appearance | |
| Morphological type | (R'_2) SB (rs) b |
| Brightness (visual) | 11.7 mag |
| Brightness (B-band) | 12.5 mag |
| Angular expansion | 4.1 'x 3.0' |
| Position angle | 18 ° |
| Surface brightness | 14.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.009947 +/- 0.000010 |
| Radial velocity | 2982 +/- 3 km / s |
|
Stroke distance v rad / H 0 |
(131 ± 9) · 10 6 ly (40.1 ± 2.8) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | October 4, 1834 |
| Catalog names | |
| NGC 7141 • PGC 67532 • ESO 189-007 • IRAS 21488-5548 • 2MASX J21521535-5534107 • SGC 214849-5548.3 • LEDA 67532 | |
NGC 7140 = NGC 7141 is a ring-shaped bar-spiral galaxy of the Hubble type SBbc in the constellation Indians in the southern sky . It is estimated to be 131 million light years from the Milky Way and about 160,000 ly in diameter.
The object was discovered by John Herschel on October 4, 1834 .