NGC 4024

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Galaxy
NGC 4024
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NGC 4024 PanS.jpg
AladinLite
Constellation Crow
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 11 h 58 m 31.25 s
declination -18 ° 20 ′ 48.6 ″
Appearance
Morphological type SB0 ^ -  
Brightness  (visual) 11.7 mag
Brightness  (B-band) 12.7 mag
Angular expansion 1.90 ′ × 1.6 ′
Position angle 70 °
Surface brightness 13.0 mag / arcmin²
Physical data
Affiliation NGC 4038 group
LGG 263  
Redshift 0.005651 ± 0.000050  
Radial velocity (1694 ± 15) km / s  
Stroke distance
v rad  / H 0
(68 ± 5)  x  10 6  ly
(21.0 ± 1.5)  Mpc 
history
discovery William Herschel
Discovery date February 7, 1785
Catalog names
NGC  4024 • PGC  37690 • ESO  572-031 • MCG  -03-31-004 • 2MASX  J11583124-1820486 • SGC  115558-1804.0 • GC  2658 • H  II 295 • GALEXASC J115831.47-182047.6 • LDCE 856 NED007 • WISEA J115831. 24-182048.2

NGC 4024 is an elliptical galaxy of Hubble type I / SB0 in the constellation Raven south of the celestial equator . It is estimated to be 68 million light years away from the Milky Way and about 40,000 light years in diameter. Together with PGC 3094106 , it forms an optical pair of galaxies and is considered a member of the 27 galaxies of the NGC 4038 group ( LGG 263 ).

In the same area of ​​the sky are u. a. the galaxies NGC 4027 , NGC 4033 , NGC 4038 , NGC 4039 .

The object was discovered by Wilhelm Herschel on February 7, 1785 .

Web links

Individual evidence

  1. a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : NGC 4024
  3. ^ VizieR
  4. Seligman