IC 2560
| Galaxy IC 2560 |
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|---|---|
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Air pump |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 10 h 16 m 18.7 s |
| declination | -33 ° 33 ′ 50 ″ |
| Appearance | |
| Morphological type | (R ':) SB (r) bc / Sy2 |
| Brightness (visual) | 11.7 mag |
| Brightness (B-band) | 12.5 mag |
| Angular expansion | 3.10 × 2.0 |
| Position angle | 45 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 196 |
| Redshift | 0.009757 ± 0.000007 |
| Radial velocity | 2925 ± 2 km / s |
|
Stroke distance v rad / H 0 |
(121 ± 8) · 10 6 ly (37.1 ± 2.6) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | December 28, 1897 |
| Catalog names | |
| IC 2560 • PGC 29993 • ESO 375-004 • MCG -05-25-001 • IRAS 10140-3318 • 2MASX J10161866-3333498 • SGC 101405-3318.9 • HIPASS J1016-33 | |
IC 2560 is a barred spiral galaxy of the Hubble type SB (r) bc in the constellation Antlia in the southern sky . It is an estimated 121 million light years away from the Milky Way and is approximately 120,000 ly in diameter. It is part of the Antlia Galaxy Cluster , a collection of over 200 galaxies.
Astronomers classify IC 2560 as a Seyfert 2 galaxy and thus an active galaxy with an unusually bright core. The energy released there comes from the accretion of large amounts of interstellar matter through a supermassive black hole in the center.
The acronym "IC" in the name of the object stands for the index catalog , an astronomical catalog of galactic nebulae, star clusters and galaxies published at the end of the 19th / beginning of the 20th century.
The object was discovered by Lewis Swift on December 28, 1897 .
Web links
- astronews.com: Picture of the day September 4, 2013