NGC 4025

from Wikipedia, the free encyclopedia
Galaxy
NGC 4025
{{{Card text}}}
NGC 4025 [1] SDSS image
NGC 4025 SDSS image
AladinLite
Constellation Big Bear
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 11 h 59 m 10.187 s
declination + 37 ° 47 ′ 36.26 ″
Appearance
Morphological type SB (s) cd  
Brightness  (visual) 13.3 mag
Brightness  (B-band) 14.0 mag
Angular expansion 2.50 ′ × 1.4 ′
Position angle 31 °
Surface brightness 14.5 mag / arcmin²
Physical data
Affiliation isolated  
Redshift 0.010711 ± 0.000010  
Radial velocity 3211 ± 3 km / s  
Stroke distance
v rad  / H 0
(144 ± 10)  ·  10 6  ly
(44.3 ± 3.1)  Mpc 
history
discovery Wilhelm Herschel
Discovery date March 17, 1787
Catalog names
NGC  4025 • UGC  6982 • PGC  37738 • CGCG  186-080 • MCG  + 06-26-064 • 2MASX  J11591024 + 3747372 • GC  2659 • H  III 617 • h  1046 • 2MASS J11591020 + 3747375 • NSA 90256 • SIG 1817

NGC 4025 is a barred spiral galaxy of the Hubble type SBc in the constellation Great Bear in the northern sky . It is estimated to be 144 million light-years from the Milky Way and about 105,000 light-years across.

The object was discovered by Wilhelm Herschel on March 17, 1787 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  3. a b c d e f SEDS : NGC 4004
  4. Seligman