IC 4638

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Galaxy
IC 4638
{{{Card text}}}
IC 4638 [1]
IC 4638
AladinLite
Constellation Hercules
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 17 h 01 m 13.695 s
declination + 33 ° 30 ′ 47.47 ″
Appearance
Morphological type E0  
Brightness  (visual) 14.9 mag
Brightness  (B-band) 15.6 mag
Angular expansion 0.80 'x 0.8'
Surface brightness 14.3 mag / arcmin²
Physical data
Redshift 0.037433 ± 0.000191  
Radial velocity 11222 ± 57 km / s  
Stroke distance
v rad  / H 0 		(509 ± 36)  ·  10 6  Lj
(156.0 ± 10.9)  Mpc 
history
discovery Sherburne W. Burnham
Discovery date April 15, 1899
Catalog names
IC  4638 • PGC  59446 • CGCG  197-026 • MCG  + 06-37-021 • 2MASX  J17011365 + 3330478 • 2MASS J17011369 + 3330475 • NSA 38899 • SDSS J170113.69 + 333047.4 • WISEA J170113.69 + 333047.5

IC 4638 is an elliptical galaxy with the Hubble type E0 in the constellation Hercules in the northern sky . It is estimated to be 509 million light-years from the Milky Way and about 120,000 light-years across.

The object was discovered on April 15, 1899 by Sherburne Wesley Burnham .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d SEDS : IC 4638
  4. ↑ Seligman