2007-02-09 08:54:51 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Irregular galaxies: no sensible core, a poorly organized mass of stars, with relatively little gas or dust. Usually small and dim.
Spiral Galaxies: have a central core composed of old stars of Population II, and spiral arms with gas, dust, and an abundance of young Population I stars. Medium to large size. They rotate, but the speed of rotation with distance does not follow normal laws of gravitation (hence the search for so-called dark matter to account for the abnormal rotation).
Elliptical Galaxies: consist of a central mass of Population II stars, little or no gas or dust, and no sensible spiral structure. Elliptical galaxies are very large, some larger than spiral galaxies. They rotate, and some are nearly spherical.
2007-02-09 09:26:12 · answer #1 · answered by David A 5 · 3⤊ 0⤋
Three Types Of Galaxies
2016-12-11 09:55:36 · answer #2 · answered by ? 4 · 0⤊ 0⤋
3 Types Of Galaxies
2016-10-02 08:02:10 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Spiral galaxies, like our Milky Way galaxy, are flattened disks with a spiral distribution of stars in that disk.
Elliptical galaxies are spherical or egg shaped collections of stars, with no particular structure.
Irregular galaxies are just random shapes, like clouds. They are also usually much smaller than the other types.
2007-02-09 09:10:28 · answer #4 · answered by campbelp2002 7 · 0⤊ 0⤋
Booyah
2015-10-12 10:36:39 · answer #5 · answered by Ketan 1 · 0⤊ 0⤋
MY B-U-T-T SMELLS GOOD
2016-03-30 12:41:40 · answer #6 · answered by Lukas 1 · 0⤊ 1⤋