NGC 23

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NGC 23
NGC 23
NGC 23 by HST
Observation data (J 2000.0 epoch)
Right ascension 00h 09m 53.4s
Declination+25° 55′ 27″
Helio radial velocity4566 ± 2 km/s[1]
Distance193 ± 14.6 Mly
(59.2 ± 4.5 Mpc)[2]
Apparent magnitude (V)11.9 mag
Absolute magnitude (V)-21.85
TypeSB(s)a;HII; Luminous infrared / starburst
Apparent size (V)1,9′ × 1,4′
Other designations
UGC 89, PGC 698, GC 9.[1]
See also: Galaxy, List of galaxies

NGC 23 is a spiral galaxy located in the Pegasus constellation. It was discovered by William Herschel on the 10th September 1784.

In the Webb Society Deep-Sky Observer's Handbook, [3] the visual appearance of NGC 23 is described as follows:

Bright, extended ellipse; a bright nuclear structure is noticeably elongated; two weak spiral enhancements emerge from opposite sides of the nucleus, one curving towards a bright star attached on the south end. The galaxy is likely interacting with NGC 9.



  1. ^ a b c "NASA/IPAC Extragalactic Database". Results for NGC 0023. Retrieved 2010-05-04.
  2. ^ "Distance Results for NGC 0023". NASA/IPAC Extragalactic Database. Retrieved 2010-05-04.
  3. ^ Jones, K. G. (1981). Webb Society Deep-Sky Observer's Handbook. Enslow Publishers. ISBN 978-0894901348.

External links[edit]