Messier 105

Source: Wikipedia, the free encyclopedia.

Leo I Group[3]
Apparent magnitude (V)9.3[4]
Characteristics
TypeE1[5]
Apparent size (V)5′.4 × 4′.8[6]
Other designations
M105, NGC 3379, PGC 32256, UGC 5902[7]

Messier 105 or M105, also known as NGC 3379, is an

Helen S. Hogg found a letter by Méchain locating and describing this object which matched those aspects under its first-published name, NGC 3379.[9]

It has a

ellipticity of no more than 0.06. There is no fine structure apparent in the isophotes, such as ripples.[10] Observation of giant stars in the halo indicate there are two general populations: a dominant metal-rich subpopulation and a weaker metal-poor group.[3]

Messier 105 is known to have a

emission line ratios between a LINER and a H II region.[12] The galaxy also contains a few young stars and stellar clusters, suggesting some elliptical galaxies still form new stars, but very slowly.[13]

This galaxy, along with its companion the

Messier objects of which are M95 and M96.[15][16][17][18] It is one of the richest group of galaxies in the Local Volume, and unlike the Local Group, it is dominated by not one but several galaxies.[19]

See also

  • List of Messier objects

References and footnotes

  1. ^ Object found: on 24 March