IC 3442

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Galaxy
IC 3442
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with LEDA 169477 (ro) & LEDA 169473 (ru) [1]
with LEDA 169477 (ro) & LEDA 169473 (ru)
AladinLite
Constellation Berenike's hair
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 12 h 31 m 20.193 s
declination + 14 ° 06 ′ 54.74 ″
Appearance
Morphological type dE0:  
Brightness  (visual) 13.6 mag
Brightness  (B-band) 14.6 mag
Angular expansion 0.9 ′ × 0.8 ′
Surface brightness 13.3 mag / arcmin²
Physical data
Affiliation Virgo cluster (??)  
Redshift 0.020714 ± 0.000167  
Radial velocity 6210 ± 50 km / s  
Stroke distance
v rad  / H 0 		(275 ± 19)  x  10 6  ly
(84.4 ± 5.9)  Mpc 
history
discovery Royal H. Frost
Discovery date May 10, 1904
Catalog names
IC  3442 • PGC  41435 • CGCG  070-144 • MCG  + 02-32-111 • VCC  1355 • GALEX ASC J123120.38 + 140654.9 • NSA 141563 • WISEA J123120.20 + 140655.5 • VPC 810

IC 3442 is an elliptical galaxy from the Hubble type E1 in the constellation Coma Berenices the northern sky . It is estimated to be 275 million light-years from the Milky Way and about 70,000 light-years across. The galaxy is listed under catalog number VVC 1355 as a member of the Virgo galaxy cluster, some 54 million light years away .
In the same area of ​​the sky are u. a. the galaxies NGC 4501 , IC 3432 , IC 3476 , IC 3478 .

The object was discovered by Royal Harwood Frost on May 10, 1904 .

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 3442
  4. ↑ Seligman