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Vitamin
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Imago
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Epithelium
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Isometric facies
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Numéris
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Mineral carbonation
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Io
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Decoy hunting
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Lava dome
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Magnaporthe grisea
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Inflorescence
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Baseline
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In vitro fertilisation
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Australopithecus
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Denaturation
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Recessive
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Nodular
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Iron bloom
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ASN. 1
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Star
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Moonquake
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VIRTIS
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Hard acid
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Kepler's second law
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Clay
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Omentum
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Nucleus
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Essential amino acid
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Node
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Rachis
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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