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Perihelion
Глоссарий по астрономии |
The point in its orbit where a planet is closest to the sun. when refering to objects orbiting the earth the term perigee is used; the term periapsis is used for orbits around other bodies. (opposite of aphelion)
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Perrine, charles dillon 1867-1951, французский
Argentine-american astronomer who discovered himalia and elara.
Penumbra, французский
Literally, "dim light"; the outer filamentary region of a sunspot.
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