NGC 7020
| Galaxy NGC 7020 / NGC 7021 |
|
|---|---|
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|
| AladinLite | |
| Constellation | peacock |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 21 h 11 m 20.1 s |
| declination | -64 ° 01 ′ 31 ″ |
| Appearance | |
| Morphological type | (R) SA (r) 0 ^ + |
| Brightness (visual) | 11.8 mag |
| Brightness (B-band) | 12.8 mag |
| Angular expansion | 3.5 '× 1.6' |
| Position angle | 165 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Affiliation | SSRS group 8 IC 5096 group LGG 443 |
| Redshift | 0.010677 ± 0.000087 |
| Radial velocity | 3201 ± 26 km / s |
|
Stroke distance v rad / H 0 |
(139 ± 10) x 10 6 ly (42.7 ± 3.0) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | August 31, 1836 |
| Catalog names | |
| NGC 7020 • 7021 • PGC 66291 • ESO 107-013 • 2MASX J21112011-6401313 • SGC 210713-6413.8 • GALEX ASC J211120.06-640130.1 • LDCE 1454 NED002 | |
NGC 7020 = NGC 7021 is an elliptical galaxy of the Hubble type SB0 in the constellation Peacock in the southern sky . It is estimated to be 139 million light years from the Milky Way and about 145,000 light years in diameter. Together with IC 5096 , IC 5084 , IC 5092 , PGC 66319 and PGC 66376 , it forms the IC 5096 group or LGG 443 .
In the same area of the sky is u. a. the galaxy IC 5084 .
The object was discovered by John Herschel on August 31, 1836 .