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Sodium
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Glucogenic amino acid
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Rate-limiting enzyme
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Sorosilicates
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Boson
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Enzymopathy
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Acroparaesthesiae
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Alevin
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Hyaloclastites
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Plague
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Ghost lineage
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Mimicry
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Mobility
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Microdiorite
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Insulation
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Epstein-Barr virus
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Coelacanth
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Till
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Actomyosin
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ATM
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Phases of the Moon
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Epicondyle
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Bare tanne
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PCR
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Ultrasound
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Fibroblasts
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Nuclear moderator
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Very high energy performance
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Minor axis
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Sundancer
M2
M2, which is the second object in the Messier catalogue, is a globular cluster in the constellation of Aquarius. Discovered by Maraldi in 1786, it has about 150,000 stars and is very dense.
It can be seen with the naked eye in a clear sky; its apparent diameter is equivalent to half a full Moon.
Picture taken using a CCD camera and a 150 mm diameter telescope, by "Chamois" (the person's pseudonym on the forum)
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