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Miscible
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Coprostanol
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Functional isomerism
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Group velocity
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Reproductive success
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Sialography
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Delirium
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Orchidectomy
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Dust Bowl
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Character
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Acetylcholine
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Conchoidal
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Bile duct
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Balmer formula
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Cerebrospinal
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Lewis formula
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Cephalin
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Altocumulus cloud
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Nymphosis
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Neutron
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Pulmonary plague
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Strong opioid analgesic
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Lymphokine
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SACD
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Colic
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Nonlinear crystal
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DSLAM
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Air conditioning
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Epileptic seizure
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MPEG
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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