lunar libration

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lunar libration [′lü·nər lī′brā·shən]

(astronomy)

The effect wherein the face of the moon appears to swing east and west about 8° from its central position each month. Also known as apparent libration in longitude.

The state wherein the inclination of the moon's polar axis allows an observer on earth to see about 59% of the moon's surface. Also known as libration in latitude.

The small oscillation with which the moon rocks back and forth about its mean rotation rate. Also known as physical libration of the moon.

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No references found			Luna, Antonio Luna, Pedro de lunabase Lunacharskii, Anatolii Lunacharskii, Anatolii Vasilevich Lunacharsky, Anatoli Vasilyevich Lunacharsky, Anatoly Lunacy lunar lunar appulse lunar atmosphere lunar atmospheric tide lunar caustic lunar crater lunar crust lunar day lunar dust lunar eclipse lunar ephemeris lunar excursion module lunar exploration lunar flight lunar geology lunar inequality lunar interval lunar libration lunar magnetic field lunar mass lunar meteoroid lunar module lunar month lunar mountain Lunar New Year lunar node lunar nodule lunar noon lunar nutation lunar orbit Lunar Orbiter lunar polarization lunar pole lunar probe lunar rainbow lunar rock lunar satellite Lunar Self-Propelled Vehicle lunar spacecraft lunar tide lunar time lunar topology Lunar Year			Lunar Extra Vehicular Activity Lunar Extravehicular Mobility Unit Lunar Extravehicular Visor Assembly lunar flight Lunar Flight Vehicle Lunar Geodetic Scout Lunar geography Lunar geography Lunar geology Lunar horns Lunar Ice Discovery Initiative lunar inequality Lunar International Laboratory lunar interval Lunar Lander Challenge Lunar Lander Project Office Lunar landing Lunar landing Lunar Landing Mission Lunar Landing Research Facility Lunar Landing Research Vehicle Lunar Landing Simulator Lunar Landing Training Vehicle Lunar laser ranging Lunar Laser Ranging Instrument lunar latitude lunar libration Lunar Liquid Mirror Telescope Lunar Logistic System Lunar Logistics System Vehicle Lunar Logistics Vehicle Lunar Magic lunar magnetic field Lunar Mapping and Survey System Lunar Mapping System Lunar mass Lunar Mass Spectrometer lunar meteoroid Lunar method Lunar Mission Scenario lunar module lunar module lunar module Lunar Module Ascent Engine Lunar Module Engine Lunar Module Pilot Lunar Module Simulator lunar modules lunar modules lunar month lunar month lunar month lunar months lunar months lunar months lunar mountain Lunar Navigation and Communication Infrastructure

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