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Traceability
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Gravitation
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Hammam
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Polypeptide
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Paleogeography
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Torino scale
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Primary colour
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Cathartic
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Lenticular galaxy
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One-time pad
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Genomics
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Inhibition
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VLPO nucleus
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Wire drawing
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Mauritian flying fox
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Intestinal absorption inhibitor
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Asbestos
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Sigmoidoscopy
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Ganymede
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Pylorus
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Myoglobin
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Carbon tax
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Cytokinin
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Eddington limit
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Shoemaker-Levy 9 comet
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Graphics software
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Caulinary
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Regulator
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Respiratory chain
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VOD
M101
M101 is a beautiful spiral galaxy seen face-on in the constellation of Ursa Major. Its apparent size is nearly a full Moon, but its extent and fine spiral arms can only be observed through a large telescope.
It is 27 million light-years away and is the brightest in a group of at least 9 galaxies.
Photographed by "baf" (the person's pseudonym on the astro forum) using a digital reflex camera fitted behind a 150 mm diameter telescope.
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