Results 201 to 210 of about 2,329 (243)

First Detection of Deuterium in Venus's Extended Exosphere

Weichbold F, Lammer H, Scherf M, Schmid D, Simon-Wedlund C, Volwerk M, Mazelle C, Wieser GS, Constatinou T, Futaana Y, Woitke P, Ferus M, Baumjohann W, Barabash S, Delva M, Eminger P, Helling C, Jarosikova A, Jernej I, Kacina J, Lichtenegger H, Magnus W, Nakamura R, Nemeckova K, Rimmer P, Varsani A, Voros Z, Zhang T.   +27 more
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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.
T Gold, Gold T
exaly   +2 more sources

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.
Han-Shou Liu
exaly   +3 more sources

The Planet Mercury

Science, 1927
exaly   +5 more sources

Transit of the Planet Mercury

Science, 1970
exaly   +3 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

Thermophysics of the planet Mercury

Space Science Reviews, 1970
Recent observations of the thermal emission of Mercury at microwave and infrared frequencies now permit a determination of the thermal and electrical properties of the subsurface of the planet. Radar and optical measurements show that the rotation period is 58.65 days, 2/3 of the orbital period.
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On the figure of the planet Mercury

Celestial Mechanics, 1969
The figure of Mercury is estimated in terms of an isostatic form of equilibrium which tends to be controlled by the situation near perihelion passage at the 3∶2 resonance spin rate. The ratios of the principal moments of inertia for Mercury are: (1)(C−A)/C≥7×10−5; (2)(C−B)/C≥5×10−5 and (3)(B−A)/C≥2×10−5.
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Mercury the Sunshine Planet

2015
Mercury is the smallest among the planets of our solar system. Its diameter is only about 2/5 of that of the Earth, about 4880 km. Even some moons of Jupiter and Saturn, Ganymede and Titan, are bigger. Mercury is the planet closest to the Sun and named after the roman God of dealers and thieves.
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