Astronomy:NGC 4394

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Short description: Galaxy in the constellation Coma Berenices

Coordinates: Sky map 12h 25m 55.624s, +18° 12′ 50.13″

NGC 4394
Hubble spies NGC 4394.jpg
NGC 4394 taken by Hubble Space Telescope.[1]
Observation data (J2000 epoch)
ConstellationComa Berenices[1]
Right ascension 12h 25m 55.624s[2]
Declination+18° 12′ 50.13″[2]
Redshift0.003075[3]
Helio radial velocity922±4 km/s[4]
Galactocentric velocity886±4 km/s[2]
Distance55±2.9 Mly (12.1±0.9 Mpc)[4]
Group or clusterVirgo Cluster
Apparent magnitude (V)10.9[4]
Apparent magnitude (B)11.9[2]
Absolute magnitude (V)-20.49[4]
Characteristics
TypeSBb / (R)SB(r)b[4]
Size41.2×38.8 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

References

  1. ↑ 1.0 1.1 "Hubble spies NGC 4394". http://www.spacetelescope.org/images/potw1618a/. 
  2. ↑ 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. ↑ 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. ↑ 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. 
  5. ↑ "Detailed Object Classifications". http://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+4394. 
  6. ↑ "The Virgo Cluster". http://www.atlasoftheuniverse.com/galgrps/vir.html. 

External links




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