NGC 987
| Galaxy NGC 987 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | triangle |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 36 m 49.6 s |
| declination | + 33 ° 19 ′ 38 ″ |
| Appearance | |
| Morphological type | SB0 / a / Sbrst |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.4 mag |
| Angular expansion | 1.6 ′ × 1.1 ′ |
| Position angle | 39 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 66 |
| Redshift | 0.015124 ± 0.000170 |
| Radial velocity | 4534 ± 51 km / s |
|
Stroke distance v rad / H 0 |
(207 ± 15) · 10 6 ly (63.6 ± 4.5) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | September 12, 1784 |
| Catalog names | |
| NGC 987 • UGC 2093 • PGC 009911 • MCG + 05-07-021 • IRAS 02338 + 3306 • 2MASX J02364960 + 3319381 • Mrk 1180 • GC 568 • H III 161 • h 237 • GALEX ASC J023649.66 + 331939.3 • LDCE 176 NED021 | |
NGC 987 is a lenticular galaxy with a high star formation rate of the Hubble type SB0 / a in the constellation Triangle in the northern sky . It is an estimated 207 million light-years away from the Milky Way and has a diameter of about 95,000 ly.
In the same area of the sky are the galaxies NGC 969 , NGC 970 , NGC 974 , NGC 978 .
The object was discovered by Wilhelm Herschel on September 12, 1784 .