IC 817

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Galaxy
IC 817 / IC 3764
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IC 817 [1]
IC 817
AladinLite
Constellation Virgin
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 12 h 46 m 56.801 s
declination + 09 ° 51 ′ 25.60 ″
Appearance
Morphological type E2 / AGN  
Brightness  (visual) 13.9 likes
Brightness  (B-band) 14.9 mag
Angular expansion 0.60 x 0.5
Surface brightness 12.7 mag / arcmin²
Physical data
Affiliation Virgo cluster  
Redshift 0.024774 ± 0.000110  
Radial velocity 7427 ± 33 km / s  
Stroke distance
v rad  / H 0 		(329 ± 23)  x  10 6  ly
(101.0 ± 7.1)  Mpc 
history
discovery Lewis Swift
Discovery date May 5, 1888
Catalog names
IC  817/3764  • UGC 7944 • PGC  43126 • CGCG  071-039 • MCG  + 02-33-020 • 2MASX  J12465678 + 0951254 • VCC  2046 • 2MASS J12465677 + 0951253 • WISEA J124656.80 + 095125.5

IC 817 = IC 3764 is an elliptical galaxy of the Hubble type E / S0 with an active galaxy core in the constellation Virgo. It is estimated to be 329 million light years from the Milky Way and about 60,000 light years in diameter. Together with IC 816 it forms a gravitationally bound galaxy pair and under the catalog number VCC 2046 it is listed as a member of the Virgo galaxy cluster , but is too far away for that.

In the same area of ​​the sky are u. a. the galaxies IC 3724 , IC 3732 , IC 3767 , IC 3773 .

The object was discovered by Lewis Swift on May 5, 1888 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e SEDS : IC 817
  4. ↑ Seligman