NGC 4725
NGC 4725 | |
---|---|
A mid-infrared image of NGC 4725 taken by the Spitzer Space Telescope (SST). Credit: Spitzer Infrared Nearby Galaxies Survey/SST/NASA. | |
Observation data (J2000 epoch) | |
Constellation | Coma Berenices[1] |
Right ascension | 12h 50m 26.6s[2] |
Declination | +25° 30′ 03″[2] |
Redshift | 1206 ± 3 km/s[2] |
Distance | 40 ± 6 Mly (12.3 ± 1.9 Mpc)[3] |
Apparent magnitude (V) | 10.1[2] |
Characteristics | |
Type | SAB(r)ab pec[4] |
Apparent size (V) | 10′.7 × 7′.6[2] |
Other designations | |
UGC 7989,[2] PGC 43451[2] | |
NGC 4725 is an intermediate barred spiral galaxy with a prominent ring structure about 40 million light-years away in the constellation Coma Berenices. NGC 4725 is a Seyfert Galaxy, suggesting an active galactic nucleus containing a supermassive black hole.
See also
External links
Wikimedia Commons has media related to NGC 4725. |
- NOAO: NGC 4725
- NGC 4725
- NASA Astronomy Picture of the Day: One-Armed Spiral Galaxy NGC 4725 (1 September 2005)
- NGC 4725 in Coma-Berenices
References
- ↑ R. W. Sinnott, ed. (1988). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. ISBN 0-933346-51-4.
- 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 4725. Retrieved 2006-11-25.
- ↑ Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I.; et al. (February 2003). "Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations". Astrophysical Journal. 583 (2): 712–726. arXiv:astro-ph/0210129. Bibcode:2003ApJ...583..712J. doi:10.1086/345430.
- ↑ "NASA/IPAC Extragalactic Database". Results for NGC 4725. Retrieved 2010-04-21.
This article is issued from Wikipedia - version of the 9/30/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.