NGC 3577

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Galaxy
NGC 3577
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NGC 3577 [1]
NGC 3577
AladinLite
Constellation Big Bear
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 11 h 13 m 44.896 s
declination + 48 ° 16 ′ 21.75 ″
Appearance
Morphological type SB (r) a / LINER  
Brightness  (visual) 13.8 mag
Brightness  (B-band) 14.7 mag
Angular expansion 1.4 ′ × 1.1 ′
Position angle 179 °
Surface brightness 14.1 mag / arcmin²
Physical data
Redshift 0.017799 ± 0.000033  
Radial velocity 5336 ± 10 km / s  
Stroke distance
v rad  / H 0 		(240 ± 17)  x  10 6  ly
(73.7 ± 5.2)  Mpc 
history
discovery William Herschel
Discovery date April 1, 1788
Catalog names
NGC  3577 • UGC  6257 • PGC  34195 • CGCG  242-010 • MCG  + 08-21-006 • 2MASX  J11134488 + 4816212 • GC  2334 • H  III 723 • NSA 159481 • WISEA J111344.89 + 481621.7

NGC 3577 is a barred spiral galaxy of the Hubble type SBa with an active galaxy core in the constellation Great Bear in the northern sky . It is an estimated 240 million light years away from the Milky Way and about 100,000 light years in diameter. Presumably it forms a gravitationally bound galaxy pair together with PGC 34184 . In the same area of ​​the sky are u. a. the galaxies NGC 3583 and NGC 3595 .

The object was discovered by Wilhelm Herschel on April 1, 1788 .

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 3577
  4. ↑ Seligman