NGC 254

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Galaxy
NGC 254
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NGC 254 [1]
NGC 254
AladinLite
Constellation sculptor
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 00 h 47 m 27.61 s
declination -31 ° 25 ′ 18.3 ″
Appearance
Morphological type (R) SA (rl) 0 +  
Brightness  (visual) 11.7 mag
Brightness  (B-band) 12.6 mag
Angular expansion 2.5 ′ × 1.5 ′
Position angle 137 °
Surface brightness 13.2 mag / arcmin²
Physical data
Affiliation SSRS group 66  
Redshift 0.005434 ± 0.000053  
Radial velocity 1629 ± 16 km / s  
Stroke distance
v rad  / H 0 		(72 ± 5)  x  10 6  ly
(22.1 ± 1.6)  Mpc 
history
discovery John Herschel
Discovery date September 28, 1834
Catalog names
NGC  254 • PGC  2778 • ESO  411-15 • MCG  -05-03-005 • 2MASX  J00472759-3125181 • SGC  004502-3141.6 • GC  140 • h  2347 • GALEX ASC J004727.55-312517.3 • LDCE 33 NED005 • WISEA J004727. 63-312518.6

NGC 254 is a lenticular galaxy of the Hubble type SB0 in the constellation Sculptor in the southern sky . It is estimated to be 72 million light years from the Milky Way and about 55,000 light years in diameter.

The object was discovered on September 28, 1834 by the British astronomer John Herschel .

Web links

Commons : NGC 254  - collection of images, videos, and audio files

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e f SEDS : NGC 254
  4. ↑ Seligman