NGC 993
Galaxy NGC 993 / NGC 994 |
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SDSS recording | |
AladinLite | |
Constellation | whale |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 02 h 36 m 46.0 s |
declination | + 02 ° 03 ′ 02 ″ |
Appearance | |
Morphological type | S0- / pec: |
Brightness (visual) | 13.7 mag |
Brightness (B-band) | 14.7 mag |
Angular expansion | 0.9 '× 0.8' |
Position angle | 110 ° |
Surface brightness | 13.4 mag / arcmin² |
Physical data | |
Redshift | 0.023056 ± 0.000093 |
Radial velocity | 6912 ± 28 km / s |
Stroke distance v rad / H 0 |
(310 ± 22) x 10 6 ly (94.9 ± 6.7) Mpc |
history | |
discovery | Albert Marth |
Discovery date | January 15, 1865 |
Catalog names | |
NGC 993 • NGC 994 • UGC 2095 • PGC 9910 • CGCG 388-063 • MCG + 00-07-052 • 2MASX J02364604 + 0203015 • GALEX ASC J023646.17 + 020301.1 • LDCE 179 NED008 |
NGC 993 = NGC 994 is an elliptical galaxy of the Hubble type E / S0 in the constellation Whale south of the ecliptic . It is estimated to be 310 million light-years away from the Milky Way and has a diameter of about 65,000 ly
. a. the galaxies NGC 1004 , NGC 1007 , NGC 1008 , IC 241 .
The object was on 15 January 1865 by the astronomer Albert Marth using a 48-inch - telescope discovered. On October 17, 1885, it was discovered independently by Lewis A. Swift , which later led to the catalog entry NGC 994 .