HUBBLE ATLAS
Spiral Galaxy NGC 3310 (IRAS 10356+5345 , NGC 3310) — image from the Hubble Space Telescope

Galaxies

Spiral Galaxy NGC 3310

January 11, 2001 · ESA/Hubble · IRAS 10356+5345 , NGC 3310 · Ursa Major

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The central region of the 'star-burst' spiral galaxy NGC 3310 shows young and old stars evenly distributed. If this were the case with most galaxies, astronomers would be able to recognize faraway galaxies fairly easily. In most galaxies, however, the stars are segregated by age, making classifying the distant ones more difficult.