NGC 7140
Galaxy NGC 7140 / NGC 7141 |
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AladinLite | |
Constellation | Indus |
Position equinox : J2000.0 , epoch : J2000.0 |
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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 .