IC 3940

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Galaxy
IC 3940
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AladinLite
Constellation Hunting dogs
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 12 h 58 m 16.5 s
declination + 35 ° 50 ′ 20 ″
Appearance
Morphological type C.  
Brightness  (visual) 14.7 mag
Brightness  (B-band) 15.7 mag
Angular expansion 0.4 ′ × 0.2 ′
Position angle 140 °
Surface brightness 11.8 mag / arcmin²
Physical data
Redshift 0.037302 +/- 0.000053  
Radial velocity 11,183 +/- 16 km / s  
Stroke distance
v rad  / H 0
(501 ± 35)  x  10 6  ly
(153.7 ± 10.8)  Mpc 
history
discovery Max Wolf
Discovery date March 21, 1903
Catalog names
IC  3940 • PGC  44429 • IRAS  12559 + 3606 • KUG  1255 + 361 • 2MASX  J12581646 + 3550195 • 2MASS J12581647 + 3550197

IC 3940 is a compact galaxy of Hubble type C in the constellation Canes Venatici the northern sky . It is estimated to be 500 million light years away from the Milky Way and has a diameter of around 60,000 ly.
In the same area of ​​the sky are the galaxies NGC 4846 , IC 3966 , IC 3967 , IC 4028 .

The object was discovered by Max Wolf on March 21, 1903 .

Web links

Individual evidence

  1. a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : 3940
  3. Seligman