NGC 561

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Galaxy
NGC 561
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SDSS recording
SDSS recording
AladinLite
Constellation Andromeda
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 01 h 28 m 18.7 s
declination + 34 ° 18 ′ 31 ″
Appearance
Morphological type (R) SB (s) a  
Brightness  (visual) 13.0 likes
Brightness  (B-band) 13.9 likes
Angular expansion 1.6 ′ × 1.5 ′
Position angle 45 °
Surface brightness 13.8 mag / arcmin²
Physical data
Affiliation NGC 507 group
LGG 26  
Redshift 0.015577 ± 0.000033  
Radial velocity 4670 ± 10 km / s  
Stroke distance
v rad  / H 0
(215 ± 15)  x  10 6  ly
(66.0 ± 4.6)  Mpc 
history
discovery Heinrich Louis d'Arrest
Discovery date August 23, 1862
Catalog names
NGC  561 • UGC  1048 • PGC  5489 • CGCG  521-032 • MCG  + 06-04-029 • IRAS  01254 + 3403 • 2MASX  J01281877 + 3418313 • GC  331 • GALEX ASC J012818.82 + 341833.7 • LDCE 74 NED086

NGC 561 is a barred spiral galaxy of the Hubble type SBa in the constellation Andromeda in the northern sky . It is estimated to be 215 million light years away from the Milky Way and has a diameter of around 100,000 ly.
In the same area of ​​the sky are the galaxies NGC 529 , NGC 531 , NGC 536 , NGC 542 , among others .

The object was discovered on August 23, 1862 by the German-Danish astronomer Heinrich Louis d'Arrest .

Web links

Commons : NGC 561  - collection of images, videos, and audio files

Individual evidence

  1. a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : NGC 561
  3. Seligman