Mare tranquillitatis

Latin

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Alternative forms

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Etymology

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mare +‎ tranquillitātis. From Mare Tranquilitatis (spelled with one L). Coined by Italian Jesuit astronomer Giovanni Battista Riccioli, by labelling a map created by Italian Jesuit optician Francesco Maria Grimaldi, and then published in 1651 in the Almagestum Novum.[1]

Proper noun

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Mare tranquillitātis n sg (genitive Maris tranquillitātis); third declension

  1. (planetology) Sea of Tranquility (a basin in Nearside, Moon, Earth, Solar System)

References

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  1. ^ The Face of the Moon, 7. Riccioli, Giovanni Battista (1598-1671)., Linda Hall Library