Spiral Galaxies

Spiral galaxies consist of a flattened rotating disk of young stars, a central bulge of generally older stars, and a surrounding halo of older stars and dense clusters of old stars called globular clusters. The disk is prominent due to the presence of young, hot stars often arranged in a spiral pattern. Spiral galaxies are sometimes the hosts of energetic nuclei which emit jets of high-energy particles which are visible in the radio. Images of those objects are categorized separately under the heading Active Galactic Nuclei, most often in the Seyferts sub-catagory.

Click any thumbnail below to view the details of that image. Other images of the atomic hydrogen in spiral galaxies can be found in the HI Rogues Gallery. Visit this non-NRAO website for more information on spiral galaxies.




IC342

M31

M33

M33

M33

M33

M51

M51

M51

m81

Melco Antennas

Milky Way

Milky Way

Nearby Galaxies

NGC 1187

NGC 2403

NGC 3596

NGC253

NGC4438

UGC10043

UGC3697

W41
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