EntityQ754936· pop 41· linked from 419 articles

IC 1101

supergiant lenticular galaxy in the constellation Virgo

Key facts

Constellation: Virgo
Right ascension: 15 10 56.1
Declination: +05 ° 44 ′ 41 ″
Redshift: 0.078 054 ± 0.000 027
Heliocentric radial velocity: 22,419 km/s (13,931 mi/s)
Distance: 354.0 ± 24.8 Mpc (1,154.6 ± 80.9 million ly ) h , 0.67
Group or cluster: Abell 2029
Type: cD; S0-
Size: 123.65 to 169.61 kpc (403,300 to 553,200 ly ), (D 25 B-band and total K-band isophotes)
Apparent size v: 1'.2 × 0'.6

via Wikipedia infobox

Article

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 core of any galaxy known to date, and contains a supermassive black hole, one of the largest discovered.

IC 1101 is located at 354.0 megaparsecs (1.15 billion light-years) from Earth. It was discovered on 19 June 1790, by the German-British astronomer William Herschel.