Astronomy:NGC 4394
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Short description: Galaxy in the constellation Coma Berenices
Coordinates: 
12h 25m 55.624s, +18° 12′ 50.13″
| NGC 4394 | |
|---|---|
 NGC 4394 taken by Hubble Space Telescope.[1] | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices[1] |
| Right ascension | 12h 25m 55.624s[2] |
| Declination | +18° 12′ 50.13″[2] |
| Redshift | 0.003075[3] |
| Helio radial velocity | 922±4 km/s[4] |
| Galactocentric velocity | 886±4 km/s[2] |
| Distance | 55±2.9 Mly (12.1±0.9 Mpc)[4] |
| Group or cluster | Virgo Cluster |
| Apparent magnitude (V) | 10.9[4] |
| Apparent magnitude (B) | 11.9[2] |
| Absolute magnitude (V) | -20.49[4] |
| Characteristics | |
| Type | SBb / (R)SB(r)b[4] |
| Size | 41.2×38.8 kly (12.7×11.3 kpc)[4] |
| Apparent size (V) | 3.6′×3.2′[4][3] |
| Other designations | |
| NGC 4394, UGC 7523, PGC 40614, MCG+03-32-035[3] | |
NGC 4394 is a SBb barred spiral galaxy in the constellation Coma Berenices and is situated about 39.5 million light-years (12.1 megaparsecs) from Earth.[4] It was discovered on 14 March 1784 by the German–British astronomer William Herschel.[3] It is a presumed companion to the lenticular galaxy M85 / NGC 4382, which lies 8 arc minutes away.[3] It is also a member of the Virgo Cluster.[5][6]
Gallery
NGC 4394 (left) with the lenticular galaxy M85 (right)
.jpg)
References
- ↑ 1.0 1.1 "Hubble spies NGC 4394". http://www.spacetelescope.org/images/potw1618a/.
- ↑ 2.0 2.1 2.2 2.3 "Search Results for NGC 4394". http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC+4394.
- ↑ 3.0 3.1 3.2 3.3 3.4 "The NGC/IC Project for object NGC 4394". http://www.ngcicproject.org/ngcicdb.asp.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 "NASA/IPAC Extragalactic Database (NED) results for object NGC 4394". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=ngc+4394&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "Detailed Object Classifications". http://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+4394.
- ↑ "The Virgo Cluster". http://www.atlasoftheuniverse.com/galgrps/vir.html.
External links
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