In 1926, Edwin Hubble proposed a classification system for galaxies, based on their shape as observed from Earth The Hubble sequence divides regular galaxies
Galaxy-classification.pdf
The Andromeda Galaxy has several aliases, most importantly Messier 31 (M31) and NGC 224 Hubble's classification for spiral galaxies, Sa-Sb-Sc(-Sd), are
lecture20.1-2.pdf
Andromeda galaxy (closest real neighbour galaxy, diam 20kpc, distance: 675 kpc), Galaxy classification via the Hubble “tuning fork diagram”
hand14.pdf
“Dwarf” or “Irregular” Galaxies There are galaxies beyond the Hubble Sequence that continue this trend Page 38 M31 Page 39 M32
c2002_classification.pdf
Hubble (mistakenly) thought galaxies might evolve from left to right in the diagram, hence the designation early and late type galaxies 2 2 Elliptical galaxies
astr505_2016-2.pdf
Hubble Ultra Deep Field (10,000 galaxies) Hubble (and others) thought this classification scheme might be an the Andromeda Galaxy
P15_Galaxies_MW.web.pdf
17 sept 2020 · 1774 -1781 - Messier catalog compiled including Andromeda galaxy as M31 Hubble classification serves as the basic one in the field
ASPlectures_Galaxies_Virtual_Sep2020_Part1_v2.pdf
(M31) The Magellanic Clouds are irregular galaxies, Figure 1: The Hubble Sequence: a morphological classification scheme for galaxies
hubble_sequence.pdf
classification schemes (e g , the Hubble type) • Understanding of galaxy formation and About 40 are galaxies, e g , M31, M51, M101; many are gaseous
Ay21_Lec11.pdf