alb5565929

The Pinwheel Galaxy

The Pinwheel Galaxy in Ursa Major, also known as Messier 101. With a visible diameter of 170,000 light years, M101 is one of the largest disk galaxies known. A unique feature of the Pinwheel Galaxy is the large number of extremely luminous H II regions that populate its spiral arms.
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Title:
The Pinwheel Galaxy
Caption:
The Pinwheel Galaxy in Ursa Major, also known as Messier 101. With a visible diameter of 170,000 light years, M101 is one of the largest disk galaxies known. A unique feature of the Pinwheel Galaxy is the large number of extremely luminous H II regions that populate its spiral arms.
Category:
Space
Credit:
Album / Robert Gendler/Stocktrek Images
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Image size:
4589 x 3927 px | 51.6 MB
Print size:
38.9 x 33.2 cm | 15.3 x 13.1 in (300 dpi)