| Its space segment will be composed of a group of X-ray telescopes based around one of the libration points or Lagrangian points. |
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| Accuracy of libration angles depending on accuracy of measuring selenographic coordinates is estimated. |
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| Spacecraft located near the L1 libration point provide data on several characteristics of the solar wind. |
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| To see how a global ocean could affect libration, take two bottles, fill one with sand and the other with water, then spin them. |
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| The authors of the new study used data from the Cassini probe orbiting Saturn to measure the libration of Mimas. |
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| Such a microsatellite has to be placed in a libration point between the Sun and the Earth. |
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| Combined with the Moon's constant spin rate, these changes in speed give rise to an apparent oscillation, or libration, which over time allows an observer on Earth to see more than half of the lunar surface. |
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| As the resonances are not separated much in frequency, there may exist values of the mean motion of the asteroid where both θ and θ′ would be angles of libration if either resonance existed in the absence of the other. |
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| The first observations of Jean-Domenica Cassini in 1666 and 1667 suggested him a period of less than one day, but did not allow to distinguish if the planet was in rotation or libration. |
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