On the second and third modes of the moon's free libration |
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| Authors: | N Sekiguchi |
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| Institution: | (1) Tokyo Astronomical Observatory, Mitaka, Tokyo, Japan |
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| Abstract: | The probable semi-amplitudes of the second and third modes of the Moon's free librations are inferred from the observed semi-amplitude of its first mode, using the statistical relations between the exciting actions and the amplitudes of the free librations, derived in the author's previous paper (Sekiguchi, 1970). It is likely that the semi-amplitudes of these librations exceed some second of arc. |
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