IC 1101 is a supergiant elliptical galaxy at the inside of the Abell 2029 galaxy cluster, approximately 320 megaparsecs (1.04 billion light-years) from Earth.
IC 1101
Observation data (J2000 epoch)
Constellation:- Virgo
Right ascension:- 15h 10m 56.1s
Declination:- +05° 44′ 41″
Redshift:- 0.077947±0.000087
Helio radial velocity:- 23,368 ± 26 km/s (14,520 ± 16 mi/s)
Galactocentric velocity:- 23,395 ± 26 km/s (14,537 ± 16 mi/s)
Distance:- 1.045 ± 0.073 billion ly (320.4 ± 22.4 Mpc)h−10.73
Group or cluster:- Abell 2029
Apparent magnitude (V):- 14.73
Characteristics
Type:- E/S0
Number of stars:- 100 trillion (1014)
Size:- 210 ± 39 thousand ly (64 ± 12 kpc) effective radius
Apparent size (V):- 1'.2 × 0'.6
Characteristics
The galaxy is classified as a supergiant oblique (E) to lenticular (S0) and is the brightest galaxy in A2029 (hence its other description A2029-BCG; BCG meaning brightest cluster galaxy). The galaxy's morphological style is debated correct to it maybe core shaped like a flatly CD but barely noticeable from den at its broadest dimensions. However, for the most part lenticulars enjoy sizes ranging from 15 to 37 kpc (50 to 120 thousand ly).[specify]
IC 1101 is amongst the largest proven galaxies, but nearby is deliberate in the astral copy about how to characterize the amount of such a galaxy. Photographic plates of azure entertaining from the galaxy (sampling stars not including the prolix halo) yield an effective radius (the radius contained by which partly the untroubled is emitted) of 65 ± 12 kpc (212 ± 39 thousand ly). The galaxy has a dreadfully fat aura of a large amount drop intensity "diffuse light" extending to a radius of 600 kpc (2 million ly). The authors of the analysis identifying the aura conclude that IC 1101 is "possibly one of the prevalent and nearly all brilliant galaxies in the universe."
Like a large amount outsized galaxies, IC 1101 is populated by a add up to of metal-rich stars, certain of which are seven billion living adult than the Sun, assembly it come into sight golden-haired blond in color. It has a clear telephone lines find at the center, which is expected allied with an ultramassive black hole in the bulk extent of 40-100 billion M☉.
Discovery
The galaxy was exposed on 19 June 1790 by the British astronomer Frederick William Herschel I. It was catalogued in 1895 by John Louis Emil Dreyer as the 1,101st focus of the Index Catalogue of Nebulae and Star Clusters(IC). At its discovery, it was identified as a imprecise feature. Following Edwin Hubble's 1932 discovery that approximately of the "nebulous features" were in reality liberated galaxies, later laboratory analysis of substance in the sky were conducted and IC 1101 was then create to be one of the unconnected galaxies.