On the Figure of the Moon

Abstract
If the discrepancies between the observational determinations can legitimately be treated as random, but if this is not true the uncertainty may well be multiplied by 4. Recent discussions of the annual libration in longitude appear to give values of γ near to those given by the Yakovkin term. A method is proposed for dealing with the difficulty stated by Banachiewicz. The data on the secular motions of the Moon's node and perigee show no serious discrepancy with the results on its figure.

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