NGC 4004

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Galaxy
NGC 4004
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NGC 4004 [1] SDSS image
NGC 4004 SDSS image
AladinLite
Constellation lion
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 11 h 58 m 05.229 s
declination + 27 ° 52 ′ 43.91 ″
Appearance
Morphological type pec / NELG / HII  
Brightness  (visual) 13.0 likes
Brightness  (B-band) 14.0 mag
Angular expansion 1.80 ′ × 0.6 ′
Position angle 8 °
Surface brightness 12.9 mag / arcmin²
Physical data
Affiliation WBL 367
NGC 4017 group
LGG 262  
Redshift 0.011234 ± 0.000003  
Radial velocity 3368 ± 1 km / s  
Stroke distance
v rad  / H 0 		(150 ± 10)  x  10 6  ly
(45.9 ± 3.2)  Mpc 
history
discovery Wilhelm Herschel
Discovery date April 11, 1785
Catalog names
NGC  4004 • UGC  6950 • PGC  37654 • CGCG  157-165 • MCG  + 05-28-060 • IRAS  11555 + 2809 • 2MASX  J11580522 + 2752441 • Mrk  432 • VV  220 • GC  2645 • H  III 354 • h  1036 • HOLM 312A • LDCE 855 NED002 • NVSS J115805 + 275241

NGC 4004 is an active Galaxy from the Hubble type P with extended star formation in Leo on the ecliptic . It is estimated to be 150 million light years from the Milky Way and about 80,000 light years in diameter. Together with IC 2982 , it forms the gravitationally bound galaxy pair Holm 312 .

In the same area of ​​the sky are u. a. the galaxies NGC 3988 , NGC 4008 , NGC 4016 , NGC 4017 .

The object was discovered by Wilhelm Herschel on April 11, 1785 .

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. ^ VizieR
  5. ↑ Seligman