IC 746

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Galaxy
IC 746
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IC 746 [1]
IC 746
AladinLite
Constellation lion
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 11 h 55 m 35.134 s
declination + 25 ° 53 ′ 22.03 ″
Appearance
Morphological type Sb / HII  
Brightness  (visual) 13.9 likes
Brightness  (B-band) 14.7 mag
Angular expansion 1.10 ′ × 0.3 ′
Position angle 169 °
Surface brightness 13.2 mag / arcmin²
Physical data
Affiliation NGC 3997 group
LGG 260  
Redshift 0.016772 ± 0.000017  
Radial velocity 5028 ± 5 km / s  
Stroke distance
v rad  / H 0 		(223 ± 16)  ·  10 6  ly
(68.5 ± 4.8)  Mpc 
history
discovery Stéphane Javelle
Discovery date April 13, 1893
Catalog names
IC  746 • UGC  6898 • PGC  37440 • CGCG  127-106 • MCG  + 04-28-096 • IRAS  11530 + 2609 • KUG  1153 + 261 • 2MASX  J11553511 + 2553220 • GALEX ASC J115535.14 + 255322.3 • NVSS J115535 + 255321 • WISEA J115535.13 + 255321.8

IC 746 is a spiral galaxy of the Hubble type Sbc with extensive star formation regions in the constellation Leo on the ecliptic . It is an estimated 223 million light years from the Milky Way and about 75,000 light years in diameter. Together with five other galaxies, it forms the NGC 3997 group ( LGG 260 ).
In the same area of ​​the sky are u. a. the galaxies NGC 3944 , NGC 3987 , NGC 3989 , NGC 3993 .

The object was discovered by Stéphane Javelle on April 13, 1893 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e f SEDS : IC 746
  4. ^ VizieR
  5. ↑ Seligman