NGC 1685

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Galaxy
NGC 1685
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NGC 1685 [1]
NGC 1685
AladinLite
Constellation Orion
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 04 h 52 m 34.232 s
declination -02 ° 56 ′ 57.63 ″
Appearance
Morphological type SB (r) 0 / a / Sy2  
Brightness  (visual) 14.1 mag
Brightness  (B-band) 15.0 mag
Angular expansion 1.3 ′ × 0.9 ′
Position angle 135 °
Surface brightness 14.1 mag / arcmin²
Physical data
Affiliation LGG 121  
Redshift 0.015190 ± 0.000037  
Radial velocity 4554 ± 11 km / s  
Stroke distance
v rad  / H 0 		(200 ± 14)  x  10 6  ly
(61.2 ± 4.3)  Mpc 
history
discovery George J. Stoney
Discovery date January 1850
Catalog names
NGC  1685 • PGC  16222 • MCG  -01-13-032 • IRAS  04500-0301 • 2MASX  J04523430-0256570 • GALEX ASC J045234.16-025657.1 • LDCE 351 NED013 • NVSS J045234-025656

NGC 1685 is a lenticular galaxy of the Hubble type SB0 / a with an active galaxy core in the constellation Orion at the celestial equator . It is estimated to be 194 million light years from the Milky Way and about 80,000 light years in diameter .

In the same area of ​​the sky are u. a. the galaxies NGC 1678 , NGC 1682 , NGC 1683 , NGC 1684 .

The object was discovered in January 1850 by the astronomer George Johnstone Stoney .

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 1685
  4. ^ VizieR
  5. ↑ Seligman