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Mare
Глоссарий по астрономии |
Literally "sea" (a very bad misnomer, still in use for historical reasons); really a large circular plain
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Mensa, французский
Mesa, flat-topped elevation.
Magnitude, французский
The degree of brightness of a celestial body designated on a numerical scale, on which the brightest star has magnitude -1.4 and the faintest visible star has magnitude 6, with the scale rule such that a decrease of one unit represents an increase in appa
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