NGC 7020
Galaxy NGC 7020 / NGC 7021 |
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AladinLite | |
Constellation | peacock |
Position equinox : J2000.0 , epoch : J2000.0 |
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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 .