NGC 4894

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Galaxy
NGC 4894
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SDSS
SDSS
AladinLite
Constellation Berenike's hair
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 13 h 00 m 16.5 s
declination + 27 ° 58 ′ 03 ″
Appearance
Morphological type SA0  
Brightness  (visual) 15.0 mag
Brightness  (B-band) 16.0 mag
Angular expansion 0.5 ′ × 0.1 ′
Position angle 27 °
Surface brightness 11.6 mag / arcmin²
Physical data
Affiliation Abell 1656 /
NGC-4889 group  
Redshift 0.015457 +/- 0.000033  
Radial velocity 4634 +/- 10 km / s  
Stroke distance
v rad  / H 0
(208 ± 15)  ·  10 6  ly
(63.7 ± 4.5)  Mpc 
history
discovery John Herschel
Discovery date March 30, 1827
Catalog names
NGC  4894 • PGC  44732 • CGCG  160-247 • 2MASX  J13001655 + 2758032 • GC  3354 • h  1510 • 2MASS J13001652 + 2758029

NGC 4894 is a 15.0 mag bright lenticular dwarf galaxy of the Hubble type "S0" in the constellation Haar der Berenike in the northern sky . It is an estimated 208 million light years away from the Milky Way , has a diameter of about 30,000 ly and is a member of the Coma galaxy cluster .
In the same area of ​​the sky are u. a. the galaxies NGC 4884 , NGC 4889 , NGC 4898 , IC 4030 .

The object was discovered by John Herschel on March 30, 1827 .

Web links

  • NGC 4894. SIMBAD, accessed February 20, 2015 .
  • NGC 4894. DSO Browser, accessed February 20, 2015 .
  • Auke Slotegraaf: NGC 4894. Deep Sky Observer's Companion, accessed February 20, 2015 .

Individual evidence

  1. a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : NGC 4894
  3. Seligman