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This list is incomplete; you can help by adding missing items. ( August 2008 ) A spiral galaxy is a type of galaxy characterized by a central bulge of old Population II stars surrounded by a rotating disc of younger Population I stars.
An example of a spiral galaxy (Pinwheel Galaxy). This category contains galaxies in the S (de Vaucouleurs for indeterminate) category or any galaxy where it is indeterminate whether the galaxy is SA, SB or SAB in its spiral nature. SA, S (Hubble) galaxies should be categorized under Category:Unbarred spiral galaxies
2 galaxies Two spiral galaxies currently starting a collision, tidally interacting, and in the process of merger. [citation needed] Eyes Galaxies (NGC 4435 & NGC 4438, Arp 120) 2 galaxies Two galaxies which have interacted or still interacting via an off-center collision, both had interacted with M86 in the past. [citation needed]
Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae [1] and, as such, form part of the Hubble sequence.
The spiral arms are practically incandescent with orange and red gas in Webb’s imagery. The images will be used to help astronomers determine the distribution of gas and dust in spiral galaxies ...
Andromeda Galaxy: Spiral galaxy: naked eye: furthest object visible with the naked eye, but first recorded by Abd al-Rahman al-Sufi [224] 1654: 3: Triangulum Galaxy: Spiral galaxy: refracting telescope: Giovanni Battista Hodierna [225] 1779: 68 [226] Messier 58: Barred spiral galaxy: refracting telescope: Charles Messier [227] 1785: 76.4 [228 ...
It is the largest known spiral galaxy with the isophotal diameter of over 717,000 light-years (220 kiloparsecs). [ 1 ] This is a list of largest galaxies known, sorted by order of increasing major axis diameters.
This is a list of known galaxies within 3.8 megaparsecs (12.4 million light-years) of the Solar System, in ascending order of heliocentric distance, or the distance to the Sun. This encompasses about 50 major Local Group galaxies, and some that are members of neighboring galaxy groups , the M81 Group and the Centaurus A/M83 Group , and some ...