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~Ruang Menambah Kredit ... Meh post gambo Part 11~
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S0 galaxies
Some galaxies appear to have a disk, or at least a very flat structure -- but have no spiral arms. These are called "S0" galaxies.
The "Spindle Galaxy", aka M102 or NGC 5866, is an S0, with a dark dust lane blocking some of the light from its disk |
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Elliptical galaxies
The defining propery of elliptical galaxies is their smooth shape and lack of arms or other features.
M32 is a companion of the Andromeda Galaxy M31; it is relatively small, one of the dwarf ellipticals
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M87, on the other hand, is a giant elliptical, one of the largest galaxies in the Virgo Cluster. But notice how much it resembles the tiny M32!
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Category: Belia & Informasi
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Post time 8-10-2009 12:43 AM
