NGC 822
Galaxy NGC 822 |
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NGC 822 | |
AladinLite | |
Constellation | Phoenix |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 02 h 06 m 39.14 s |
declination | -41 ° 09 ′ 24.3 ″ |
Appearance | |
Morphological type | E + |
Brightness (visual) | 13.1 mag |
Brightness (B-band) | 14.1 mag |
Angular expansion | 1.1 ′ × 0.6 ′ |
Position angle | 77 ° |
Surface brightness | 12.7 mag / arcmin² |
Physical data | |
Affiliation | NGC 862 group LGG 50 |
Redshift | 0.018112 ± 0.000063 |
Radial velocity | 5430 ± 19 km / s |
Stroke distance v rad / H 0 |
(239 ± 17) x 10 6 ly (73.2 ± 5.1) Mpc |
history | |
discovery | John Herschel |
Discovery date | September 5, 1834 |
Catalog names | |
NGC 822 • PGC 008 055 • ESO 020436-4123.7 • MCG -07-05-008 • 2MASX J02063913-4109243 • SGC 020436-4123.7 • GC 490 • h 2461 • • GALEXASC J020639.24-410926.5 LDCE 143 NED003 • WISEA J020639.14 -410924.1 |
NGC 822 is an elliptical galaxy of Hubble type E5 in the constellation Phoenix on southern sky . It is an estimated 239 million light years from the Milky Way and about 80,000 light years in diameter. Together with NGC 862 and PGC 8028 , it forms the small NGC 862 group ( LGG 50 ).
The object was discovered on September 5, 1834 by the astronomer John Herschel .