Results 191 to 200 of about 2,340 (236)

The Origins & Reservoirs of Exocomets. [PDF]

open access: yesSpace Sci Rev
Bannister M   +13 more
europepmc   +1 more source

Theory of Rotation for the Planet Mercury

Science, 1965
The theory of the rotation of the planet Mercury is developed in terms of the motion of a rigid system in an inverse-square field. It is possible for Mercury to rotate with a period exactly two-thirds of the period of revolution; there is a libration with a period of 25 years.
John A O'Keefe   +2 more
exaly   +3 more sources

Rotation of the Planet Mercury

Nature, 1965
SOLAR tidal friction must be an intense effect for Mercury, and it must be expected that the planet's spin would have relaxed from any original value to one that is under the control of this effect in a time short compared with the age of the solar system.
Thomas Gold
exaly   +2 more sources

Rotation of the Planet Mercury

Science, 1966
The equations of motion for the rotation of Mercury are solved for the general case by an asymptotic expansion. The findings of Liu and O'Keefe, obtained by numerical integration of a special case, that it is possible for Mercury's rotation to be locked into a 2:3 resonance with its revolution, are confirmed in detail.
openaire   +2 more sources

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