IC 4697

from Wikipedia, the free encyclopedia
Galaxy
IC 4697
{{{Card text}}}
Photo-request.svg
AladinLite
Constellation Hercules
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 18 h 12 m 26.91 s
declination + 25 ° 25 ′ 37.9 ″
Appearance
Morphological type S.  
Brightness  (visual) 14.4 mag
Brightness  (B-band) 15.2 mag
Angular expansion 0.90 'x 0.2'
Position angle 0 °
Surface brightness 12.4 mag / arcmin²
Physical data
Affiliation WBL 653  
Redshift 0.016355 ± 0.000117  
Radial velocity 4903 ± 35 km / s  
Stroke distance
v rad  / H 0
(227 ± 16)  x  10 6  ly
(69.6 ± 4.9)  Mpc 
history
discovery Stéphane Javelle
Discovery date July 29, 1903
Catalog names
IC  4697 • PGC  61560 • CGCG  142-023 • MCG  + 04-43-013 • 2MASX  J18122689 + 2525373 • GALEX ASC J181226.75 + 252539.1 • WISEA J181226.93 + 252538.6 • LDCE 1290 NED006

IC 4697 is a spiral galaxy of the Hubble type S with an active galaxy core in the constellation Hercules in the northern sky . It is estimated to be 227 million light years from the Milky Way and about 60,000 light years in diameter. Presumably it forms a gravitationally bound galaxy pair together with PGC 61565 .

In the same area of ​​the sky is u. a. the galaxy NGC 6581 .

The object was discovered by Stéphane Javelle on July 29, 1903 .

Web links

Individual evidence

  1. a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : IC 4697
  3. Seligman