NGC 4944

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Galaxy
NGC 4944
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SDSS
SDSS
AladinLite
Constellation Berenike's hair
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 13 h 03 m 49.9 s
declination + 28 ° 11 ′ 09 ″
Appearance
Morphological type S0-a  
Brightness  (visual) 12.9 mag
Brightness  (B-band) 13.8 mag
Angular expansion 1.5 ′ × 0.5 ′
Position angle 89 °
Surface brightness 12.7 mag / arcmin²
Physical data
Affiliation Coma galaxy clusters ?  
Redshift 0.023313 +/- 0.000025  
Radial velocity 6989 +/- 7 km / s  
Stroke distance
v rad  / H 0
(313 ± 22)  x  10 6  ly
(96.0 ± 6.7)  Mpc 
history
discovery Wilhelm Herschel
Discovery date April 11, 1785
Catalog names
NGC  4944 • UGC  8167 • PGC  45133 • CGCG  160-124 NED01 • MCG  + 05-31-118 • 2MASX  J13034994 + 2811089 • GC  3385 • H  II 395 • h  1522 • LDCE 926 NED072

NGC 4944 is a 12.9 mag bright galaxy of the Hubble type "S0-a" in the constellation Haar der Berenike in the northern sky . It is estimated to be 313 million light years away from the Milky Way and has a diameter of about 130,000 ly.
In the same area of ​​the sky are the galaxies NGC 4934 , NGC 4943 , IC 4111 , IC 4133 .

The Type Ia supernova SN 1973F was observed here.

The object was discovered on April 11, 1785 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "F, S".

Web links

  • NGC 4944. SIMBAD, accessed February 22, 2015 .
  • NGC 4944. DSO Browser, accessed February 22, 2015 .

Individual evidence

  1. a b c NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : NGC 4944
  3. Auke Slotegraaf: NGC 4944. Deep Sky Observer's Companion, accessed on February 22, 2015 (English).
  4. Seligman