NGC 1156

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Galaxy
data from NGC 1156
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NGC1156-hst-R658GB625.jpg
Photo from the Hubble Space Telescope
AladinLite
Constellation Aries
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 02 h 59 m 42.3 s
declination + 25 ° 14 ′ 16 ″
Appearance
Morphological type IB (s) m / HII  
Brightness  (visual) 11.7 mag
Brightness  (B-band) 12.3 mag
Angular expansion 2.6 ′ × 1.7 ′
Position angle 34 °
Surface brightness 13.2 mag / arcmin²
Physical data
Redshift 0.001251 ± 0.000005  
Radial velocity +375 ± 1 km / s  
Stroke distance
v rad  / H 0
(20 ± 1)  x  10 6  ly
(6.11 ± 0.43)  Mpc 
history
discovery William Herschel
Discovery date November 13, 1786
Catalog names
NGC  1156 • UGC  2455 • PGC  11329 • CGCG  485-006 • MCG  + 04-08-06 • IRAS  02567 + 2502 • 2MASX  J02594283 + 2514282 • VV  531 • GC  627 • H  II 619 • HIPASS  J0259 + 25 • KARA 121 • LDCE 0160 NED015

NGC 1156 is an irregular dwarf galaxy with extensive star formation regions of the Hubble type IBm in the constellation Aries on the ecliptic . It is estimated to be 20 million light years from the Milky Way and about 13,000 light years in diameter.

The object was discovered on November 13, 1786 by the German-British astronomer William Herschel .

Web links

Commons : NGC 1156  - collection of images, videos, and audio files

Individual evidence

  1. a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c NGC 1156
  3. Seligman