NOAO Image Gallery: Galaxies

NOAO Image Gallery

Galaxies
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NOAO is operated by the Association of Universities for Research in Astronomy (AURA), Inc. under cooperative agreement with the National Science Foundation

The astronomical images presented on these pages are provided through the facilities of the National Optical Astronomy Observatory, unless otherwise noted. If you plan to use any of these images for other than your personal enjoyment please read our conditions of use.

Galaxies are large groupings of millions to hundreds of billions of stars. Some also contain large amounts of gas and dust from which new stars are still being formed. Galaxies are classified based on their appearance into broad categories such as spirals, ellipticals, and irregulars, as well as several narrower subcategories.