NGC 4650A

NGC 4650A
A Hubble Space Telescope (HST) image of NGC 4650A.
Observation data (J2000 epoch)
Constellation	Centaurus
Right ascension	12h 44m 49.0s[1]
Declination	-40° 42′ 52″[1]
Redshift	2880 ± 3 km/s[1]
Type	Polar-ring galaxy[2][3]
Apparent dimensions (V)	1′.6 × 0′.8[1]
Apparent magnitude (V)	13.9[1]
Other designations
PGC 42951[1]
See also: Galaxy, List of galaxies

NGC 4650A is a polar-ring galaxy located in the constellation Centaurus. It should not be confused with the spiral galaxy NGC 4650, which shares almost the same radial distance as NGC 4650A. The real distance between both galaxies is only about 6 times the optical radius of NGC 4650.^[4]

References

1. ^ ^{a b c d e f} "NASA/IPAC Extragalactic Database". Results for NGC 4650A. http://nedwww.ipac.caltech.edu/. Retrieved 2007-03-30. 
2. ^ J. L. Sérsic (1967). "Southern Peculiar Galaxies III". Zeitschrift für Astrophysik 67: 306–311. Bibcode 1967ZA.....67..306S. 
3. ^ B. C. Whitmore, D. B. McElroy, F. Schweizer (1987). "The shape of the dark halo in polar-ring galaxies". Astrophysical Journal 314: 439–456. Bibcode 1987ApJ...314..439W. doi:10.1086/165077. 
4. ^ Formation of polar ring galaxies, F. Bournaud, F. Combes, Observatoire de Paris, LERMA, École Normale Supérieure. Accessed on line July 10, 2008.

External links

• Hubble Heritage site: Pictures and description