Magellanic Clouds ― Irregular Dwarf Galaxies

Autor:

ESO/S. Brunier

Přisuzování:

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Shortlink:

https://czwiki.cz/b/8258c

Zdroj:

Wikimedia Commons

Formát:

3247 x 2066 Pixel (1336509 Bytes)

Popis:

Seen from the southern skies, the Large and Small Magellanic Clouds (the LMC and SMC, respectively) are bright patches in the sky. These two irregular dwarf galaxies, together with our Milky Way Galaxy, belong to the so-called Local Group of galaxies. Astronomers once thought that the two Magellanic Clouds orbited the Milky Way, but recent research suggests this is not the case, and that they are in fact on their first pass by the Milky Way. The LMC, lying at a distance of 160 000 light-years, and its neighbour the SMC, some 200 000 light-years away, are among the largest distant objects we can observe with the unaided eye. Both galaxies have notable bar features across their central discs, although the very strong tidal forces exerted by the Milky Way have distorted the galaxies considerably. The mutual gravitational pull of the three interacting galaxies has drawn out long streams of neutral hydrogen that interlink the three galaxies.

Licence:

CC BY 4.0

Credit:

ESO

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