| IC 1101 | |
|---|---|
.jpg) June 1995 image of IC 1101 taken by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 15h 10m 56.1s[1] |
| Declination | +05° 44′ 41″[1] |
| Redshift | 0.078054±0.000027[1][2] |
| Heliocentric radial velocity | 22,419 km/s (13,931 mi/s)[1] |
| Distance | 354.0 ± 24.8 Mpc (1,154.6 ± 80.9 million ly)h−1 0.67[1] |
| Group or cluster | Abell 2029 |
| Apparent magnitude (V) | 13.22[1] |
| Characteristics | |
| Type | cD; S0-[1] |
| Size | 123.65 to 169.61 kpc (403,300 to 553,200 ly) (D25 B-band and total K-band isophotes)[3][4][a] |
| Apparent size (V) | 1'.2 × 0'.6[1] |
| Other designations | |
| UGC 9752,[1] PGC 54167,[1] A2029-BCG[1] | |
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IC 1101 is a class S0 supergiant (cD) lenticular galaxy at the center of the Abell 2029 galaxy cluster. It has an isophotal diameter at about 123.65 to 169.61 kiloparsecs (400,000 to 550,000 light-years). It possesses a diffuse core which is the largest known core of any galaxy to date,[5] and contains a supermassive black hole, one of the largest discovered.[5] IC 1101 is located at 354.0 megaparsecs (1.15 billion light-years) from Earth. It was discovered on 19 June 1790, by the British astronomer William Herschel.[6]
- ^ a b c d e f g h i j k "NED results for object IC 1101". NASA/IPAC Extragalactic Database. Retrieved 28 August 2022.
- ^ Cite error: The named reference
Sohnwas invoked but never defined (see the help page). - ^ De Vaucouleurs, Gerard; De Vaucouleurs, Antoinette; Corwin, Herold G.; Buta, Ronald J.; Paturel, Georges; Fouque, Pascal (1991). Third Reference Catalogue of Bright Galaxies. Bibcode:1991rc3..book.....D.
- ^ "NASA/IPAC Extragalactic Database". Archived from the original on 15 August 2022. Retrieved 26 August 2022.
- ^ a b Cite error: The named reference
Dullo2017was invoked but never defined (see the help page). - ^ "William Herschel's astronomical discoveries". MacTutor. University of St Andrews, Scotland. Retrieved 4 April 2020.
Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).