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Light-year
Глоссарий по астрономии |
= 9.46053e12 km (= 5,880,000,000,000 miles = 63,239 au); the distance traveled by light in a year.
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Limb, французский
The outer edge of the apparent disk of a celestial body
Lidar, французский
An instrument similar to radar that operates at visible wavelengths.
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