NGC 4721
Galaxy NGC 4721 |
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SDSS | |
AladinLite | |
Constellation | Berenike's hair |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 12 h 50 m 19.9 s |
declination | + 27 ° 19 ′ 26 ″ |
Appearance | |
Morphological type | S0? |
Brightness (visual) | 14.5 mag |
Brightness (B-band) | 15.5 mag |
Angular expansion | 0.8 ′ × 0.3 ′ |
Position angle | 114 ° |
Surface brightness | 12.8 mag / arcmin² |
Physical data | |
Redshift | 0.025568 +/- 0.000080 |
Radial velocity | 7665 +/- 24 km / s |
Stroke distance v rad / H 0 |
(343 ± 24) x 10 6 ly (105.1 ± 7.4) Mpc |
history | |
discovery | Heinrich d'Arrest |
Discovery date | April 24, 1865 |
Catalog names | |
NGC 4721 • PGC 43437 • CGCG 159-086 • MCG + 05-30-097 • GC 5671 • LDCE 0926 NED009 |
NGC 4721 is a 14.5 mag bright lenticular galaxy of the Hubble type S0 in the constellation Haar der Berenike , which is about 343 million light years away from the Milky Way.
It was discovered by Heinrich Louis d'Arrest on April 24, 1865 .
Web links
- NGC 4721. SIMBAD, accessed February 4, 2015 .
- NGC 4721. DSO Browser, accessed February 4, 2015 .
- Auke Slotegraaf: NGC 4721. Deep Sky Observer's Companion, accessed February 4, 2015 .