NGC 4949

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Galaxy
NGC 4949
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SDSS
SDSS
AladinLite
Constellation Berenike's hair
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 13 h 04 m 17.9 s
declination + 29 ° 01 ′ 46 ″
Appearance
Morphological type Sb  
Brightness  (visual) 14.9 mag
Brightness  (B-band) 15.7 mag
Angular expansion 0.6 ′ × 0.3 ′
Position angle 108 °
Surface brightness 12.9 mag / arcmin²
Physical data
Affiliation Coma galaxy clusters ?  
Redshift 0.022800 +/- 0.000063  
Radial velocity 6835 +/- 19 km / s  
Stroke distance
v rad  / H 0
(306 ± 22)  x  10 6  ly
(93.9 ± 6.6)  Mpc 
history
discovery Heinrich d'Arrest
Discovery date April 19, 1865
Catalog names
NGC  4949 • PGC  45161 • GC  5715 • GALEX ASC J130417.94 + 290145.7

NGC 4949 is a 14.9 mag bright bar-spiral galaxy of the Hubble type "SBb" in the constellation Haar der Berenike in the northern sky . It is estimated to be 306 million light years away from the Milky Way and has a diameter of around 55,000 ly.
In the same area of ​​the sky are the galaxies NGC 4952 , NGC 4966 , IC 843 , IC 4088 .

The object was discovered by Heinrich Louis d'Arrest on April 19, 1865 .

Web links

  • NGC 4949. SIMBAD, accessed February 22, 2015 .
  • NGC 4949. DSO Browser, accessed February 22, 2015 .

Individual evidence

  1. a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : NGC 4949
  3. Seligman