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2015
Once the Galilean satellites of Jupiter were discovered and the Copernican model of the solar system became widely accepted, Mars’ apparent lack of a moon was notable. By the end of the seventeenth century, Saturn was known to have at least five satellites, a number that swelled to seven by the end of the eighteenth century.
S. L. Murchie +3 more
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Once the Galilean satellites of Jupiter were discovered and the Copernican model of the solar system became widely accepted, Mars’ apparent lack of a moon was notable. By the end of the seventeenth century, Saturn was known to have at least five satellites, a number that swelled to seven by the end of the eighteenth century.
S. L. Murchie +3 more
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Nature, 1969
THERE have been several attempts to explain the large secular acceleration of the motion of Phobos (the closer of the two satellites of Mars) that was derived by Sharpless1 by fitting a quadratic expression for the mean longitude to five selected groups of orbital elements covering the period 1879 to 1941.
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THERE have been several attempts to explain the large secular acceleration of the motion of Phobos (the closer of the two satellites of Mars) that was derived by Sharpless1 by fitting a quadratic expression for the mean longitude to five selected groups of orbital elements covering the period 1879 to 1941.
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Solar System Research, 2004
The available experimental data and theoretical reasons allow us to point out only the upper limit of Phobos' magnetic moment, which does not exceed 1018 G cm3.
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The available experimental data and theoretical reasons allow us to point out only the upper limit of Phobos' magnetic moment, which does not exceed 1018 G cm3.
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Icarus, 1979
The Viking Orbiters have obtained several images of Phobos at large phase angles in which the portion of the satellite not directly illuminated by the sun is faintly visible. A photometric analysis of one such image is presented to prove that the phenomenon is real and can be explained by Marsshine (i.e., the illumination of Phobos by sunlight ...
J. Goguen, J. Veverka, T. Duxbury
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The Viking Orbiters have obtained several images of Phobos at large phase angles in which the portion of the satellite not directly illuminated by the sun is faintly visible. A photometric analysis of one such image is presented to prove that the phenomenon is real and can be explained by Marsshine (i.e., the illumination of Phobos by sunlight ...
J. Goguen, J. Veverka, T. Duxbury
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Icarus, 1978
Abstract A model of the Martian satellite Phobos was constructed at a scale of 1:60 000 using 25 Mariner 9 photorecords and a solar-simulation technique. Measurements of the crater diameters D, depths d, ratios d D , longitude and latitude locations of the centers, IAU designations, crater shapes, and rim class are given in a catalog of 260 ...
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Abstract A model of the Martian satellite Phobos was constructed at a scale of 1:60 000 using 25 Mariner 9 photorecords and a solar-simulation technique. Measurements of the crater diameters D, depths d, ratios d D , longitude and latitude locations of the centers, IAU designations, crater shapes, and rim class are given in a catalog of 260 ...
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2011
È iniziato il conto alla rovescia per la missione russa Phobos-Grunt. Raggiungere Phobos, maggiore delle due lune marziane, atterrarvi e prelevare campioni da spedire poi alla Terra: sono questi i suoi ambiziosi obiettivi.
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È iniziato il conto alla rovescia per la missione russa Phobos-Grunt. Raggiungere Phobos, maggiore delle due lune marziane, atterrarvi e prelevare campioni da spedire poi alla Terra: sono questi i suoi ambiziosi obiettivi.
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Phobos regolith simulants PGI-1 and PCA-1
Advances in Space Research, 2021Daniel T Britt +2 more
exaly
The Importance of Phobos Sample Return for Understanding the Mars-Moon System
Space Science Reviews, 2020Tomohiro Usui +2 more
exaly