NGC 1654

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Galaxy
NGC 1654
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NGC 1657 & NGC 1654 [1]
NGC 1657 & NGC 1654
AladinLite
Constellation Eridanus
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 04 h 45 m 48.45 s
declination -02 ° 05 ′ 02.0 ″
Appearance
Morphological type (R ') SB (r) a  
Brightness  (visual) 13.5 likes
Brightness  (B-band) 14.4 mag
Angular expansion 0.8 ′ × 0.8 ′
Surface brightness 12.9 mag / arcmin²
Physical data
Redshift 0.015154 ± 0.000040  
Radial velocity 4543 ± 12 km / s  
Stroke distance
v rad  / H 0 		(200 ± 14)  x  10 6  ly
(61.2 ± 4.3)  Mpc 
history
discovery Édouard Stephan
Discovery date December 21, 1881
Catalog names
NGC  1654 • UGC  3154 • PGC  15943 • CGCG  394-003 • IRAS  04433-0210 • 2MASX  J04454844-0205020 • LDCE 351 NED002 • NVSS J044548-020458 • WISEA J044548.50-020501.8

NGC 1654 is a spiral galaxy of Hubble type Sa in the constellation Eridanus at the southern sky . It is estimated to be 200 million light-years from the Milky Way and about 50,000 light-years across .
In the same area of ​​the sky are u. a. the galaxies NGC 1653 , NGC 1657 , NGC 1661 .

The Type I supernova SN 1962P was observed here.

The object was discovered by Édouard Stephan on December 21, 1881 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e SEDS : NGC 1654
  4. ↑ Simbad
  5. ↑ Seligman