|Observation data (J2000 epoch)|
|Right ascension||14h 13m 9.9s|
|Declination||−65° 20′ 21″|
|Redshift||426 ± 25 km/s|
|Apparent dimensions (V)||6′.9 × 3′.0|
|Apparent magnitude (V)||12.1|
|ESO 97-G13, LEDA 50779|
The Circinus Galaxy (ESO 97-G13) is a Seyfert galaxy in the Circinus constellation - and one of the closest to the Milky Way (see also NGC 185). It is only 4 degrees below the Galactic plane, and 13 million light-years away. The galaxy is undergoing tumultuous changes, as rings of gas are being ejected from the galaxy. The outermost ring is 700 light-years from the center of the galaxy and the inner ring is 130 light-years out. Although the Circinus galaxy can be seen using a small telescope, it was not noticed until 1977 because it lies close to the plane of the Milky Way and is obscured by galactic dust. The Circinus Galaxy is a Type II Seyfert galaxy and is one of the closest known active galaxies to the Milky Way, though it is probably slightly further away than Centaurus A.
Circinus Galaxy was a home for SN 1996cr, that has been identified over a decade after it exploded. The supernova was first singled out in 2001 as a bright, variable object in a Chandra image, but it was not confirmed as a supernova until years later.
- "NASA/IPAC Extragalactic Database". Results for ESO 97-13. Retrieved 2007-04-20.
- "SIMBAD Astronomical Database". Results for ESO 97-13. Retrieved 2007-04-20.
- Maiolino, R.; Krabbe, A.; Thatte, N.; Genzel, R. (1998). "Seyfert Activity and Nuclear Star Formation in the Circinus Galaxy". The Astrophysical Journal 493 (2): 650–65. arXiv:astro-ph/9709091. Bibcode:1998ApJ...493..650M. doi:10.1086/305150.
- Inglis, Mike (2004). Astronomy of the Milky Way: Observer's Guide to the Southern Sky. New York, New York: Springer. p. 31. ISBN 1-85233-742-7.
- Chandra X observatory: Chandra Examines Black Holes Large and Small in Nearby Galaxy
- The Hubble European Space Agency Information Centre Hubble picture and information on Circinus Galaxy
- NASA APOD: The Circinus Galaxy - December 4, 2000