IC 1681

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Galaxy
IC 1681
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IC 1681 [1]
IC 1681
AladinLite
Constellation whale
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 01 h 21 m 21.321 s
declination + 00 ° 05 ′ 25.40 ″
Appearance
Morphological type Sm  
Brightness  (visual) 13.8 mag
Brightness  (B-band) 14.7 mag
Angular expansion 1 ′ × 0.5 ′
Position angle 99 °
Surface brightness 12.6 mag / arcmin²
Physical data
Affiliation Abell 194  
Redshift 0.012695 ± 0.000023  
Radial velocity 3806 ± 7 km / s  
Stroke distance
v rad  / H 0
(173 ± 12)  ·  10 6  ly
(53.0 ± 3.7)  Mpc 
history
discovery Stéphane Javelle
Discovery date December 18, 1897
Catalog names
IC  1681 • UGC  894 • PGC  4916 • CGCG  385-080 • MCG  + 00-04-097 • IRAS  F01187-0010 • 2MASX  J01212131 + 0005257 • NVSS J012121 + 000520 • WISEA J012121.31 + 000525.4 • SIP 0652-1

IC 1681 is a faint spiral galaxy of the Hubble type S in the constellation Whale south of the ecliptic . It is estimated to be 173 million light years from the Milky Way and about 50,000 light years in diameter.
The galaxies NGC 493 , NGC 497 , IC 1697 are located in the same area of ​​the sky .

The object was discovered by Stéphane Javelle on December 18, 1897 .

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 : IC 1681
  4. Seligman