NGC 3661

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Galaxy
NGC 3661 / IC 689
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NGC 3661 [1], Pan-STARRS
NGC 3661, Pan-STARRS
AladinLite
Constellation cups
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 11 h 23 m 38.43 s
declination -13 ° 49 ′ 52.0 ″
Appearance
Morphological type SA (r) 0 / a:  
Brightness  (visual) 13.1 mag
Brightness  (B-band) 14.0 mag
Angular expansion 1.6 '× 0.6'
Position angle 137 °
Surface brightness 12.9 mag / arcmin²
Physical data
Redshift 0.022312 ± 0.000103  
Radial velocity 6689 ± 31 km / s  
Stroke distance
v rad  / H 0 		(292 ± 21)  ·  10 6  ly
(89.4 ± 6.3)  Mpc 
history
discovery William Herschel
Discovery date March 27, 1786
Catalog names
NGC  3661 • IC  689 • PGC  34986 • MCG  -02-29-022 • IRAS  F11211-1333 • 2MASX  J11233844-1349520 • GC  2402 • H  III 530 • h  3339 • GALEX ASC J112338.51-134951.1 • WISEA J112338.41- 134951.7 • LDCE 814 NED001

NGC 3661 = IC 689 is a lens-shaped galaxy of the Hubble type S0 / a in the constellation Becher in the southern sky . It is an estimated 292 million light years from the Milky Way and about 140,000 light years in diameter.
In the same area of ​​the sky is u. a. the galaxy NGC 3667 .

The object was discovered by Wilhelm Herschel on March 27, 1786 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e f SEDS : NGC 3661
  4. ↑ Seligman