NGC 4008

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Galaxy
NGC 4008
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NGC 4008 [1] SDSS image
NGC 4008 SDSS image
AladinLite
Constellation lion
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 11 h 58 m 17.04 s
declination + 28 ° 11 ′ 33.0 ″
Appearance
Morphological type E5  
Brightness  (visual) 11.9 likes
Brightness  (B-band) 12.9 mag
Angular expansion 2.40 ′ × 1.3 ′
Position angle 167 °
Surface brightness 13.2 mag / arcmin²
Physical data
Affiliation NGC 4017 group
LGG 262  
Redshift 0.012075 ± 0.000073  
Radial velocity 3620 ± 22 km / s  
Stroke distance
v rad  / H 0
(161 ± 11)  ·  10 6  ly
(49.4 ± 3.5)  Mpc 
history
discovery Wilhelm Herschel
Discovery date April 11, 1785
Catalog names
NGC  4008 • UGC  6953 • PGC  37666 • CGCG  157-066 • MCG  + 05-28-061 • 2MASX  J11581704 + 2811330 • GC  2649 • H  II 368 • h  1038 • GALEX ASC J115816.97 + 281133.4 • LDCE 855 NED003 • NVSS J115816 + 281134

NGC 4008 is an elliptical galaxy of Hubble type E5 in the constellation Leo on the ecliptic . It is an estimated 161 million light-years from the Milky Way and about 115,000 light-years across. Together with three other galaxies, it forms the NGC 4017 group ( LGG 262 ).
In the same area of ​​the sky are u. a. the galaxies NGC 3988 , NGC 4004 , NGC 4016 , IC 2982 .

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 4008
  4. ^ VizieR
  5. Seligman