Sextans A

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Sextans A
Irregular galaxy Sextans A. The bright Milky Way foreground stars appear yellowish in this view. Beyond them lie the stars of Sextans A with young blue star clusters clearly visible.
Irregular galaxy Sextans A. The bright Milky Way foreground stars appear yellowish in this view. Beyond them lie the stars of Sextans A with young blue star clusters clearly visible.

Sextans A

Observation data: J2000 epoch
Constellation: Sextans
Right ascension: 10h 11m 00.8s[1]
Declination: -04° 41′ 34″[1]
Redshift: 324 ± 2 km/s[1]
Distance: 4.31 ± 0.13 Mly (1.32 ± 0.04 Mpc)[2][3][4]
Type: IBm[1]
Apparent dimensions (V): 5′.9 × 4′.9[1]
Apparent magnitude (V): 11.9[1]
Notable features: -
Other designations
UGCA 205,[1] DDO 75,[1] PGC 29653[1]
See also: Galaxy, List of galaxies


Sextans A ( as known as UGCA 205 ), is a tiny dwarf[citation needed] irregular galaxy. It span is 5000 light-years across, and is located within the Local Group, 4.3 million light-years away from the Earth. Sextans A is one of most distant members of the Local Group.













[edit] References

  1. ^ a b c d e f g h i NASA/IPAC Extragalactic Database. Results for Sextans A. Retrieved on 2006-11-18.
  2. ^ Dolphin, Andrew E. et al (March 2003). "Deep Hubble Space Telescope Imaging of Sextans A. II. Cepheids and Distance". The Astronomical Journal 125: 1261. 
  3. ^ I. D. Karachentsev, V. E. Karachentseva, W. K. Hutchmeier, D. I. Makarov (2004). "A Catalog of Neighboring Galaxies". Astronomical Journal 127: 2031-2068. 
  4. ^ Karachentsev, I. D.; Kashibadze, O. G. (2006). "Masses of the local group and of the M81 group estimated from distortions in the local velocity field". Astrophysics 49 (1): 3-18. 


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