NGC 4239

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Galaxy
NGC 4239
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NGC 4239 with LEDA 213964 [1] (o)
NGC 4239 with LEDA 213964 (o)
AladinLite
Constellation Berenike's hair
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 12 h 17 m 14.9 s
declination + 16 ° 31 ′ 53 ″
Appearance
Morphological type E.  
Brightness  (visual) 12.6 mag
Brightness  (B-band) 13.6 mag
Angular expansion 1.4 'x 0.7'
Position angle 120 °
Surface brightness 13.6 mag / arcmin²
Physical data
Affiliation Messier 49 group
NGC 4343 group
NGC 4636 group
LGG 292  
Redshift 0.003135 ± 0.000053  
Radial velocity 940 ± 16 km / s  
Stroke distance
v rad  / H 0 		(40 ± 3)  x  10 6  ly
(12.2 ± 0.9)  Mpc 
history
discovery Carl F. Pechüle
Discovery date April 1884
Catalog names
NGC  4239 • UGC  7316 • PGC  39398 • CGCG  098-129 • MCG  + 03-31-092 • 2MASX  J12171493 + 1631532 • SDSS J121714.93 + 163152.7 • LDCE 904 NED032 • EVCC 274

NGC 4239 is an elliptical dwarf galaxy of the Hubble type E5 in the constellation Coma Berenices in the northern sky . It is estimated to be 40 million light years from the Milky Way and about 15,000 light years in diameter.

The object was discovered by Carl Frederick Pechüle in April 1884 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e f SEDS : NGC 4239
  4. ^ VizieR
  5. ↑ Seligman