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Phobos
Phobos The inner satellite of Mars, 9380 km from the planet's centre and only 6000 km above its surface. Phobos orbits in 0.319 days, faster than Mars rotates on its axis, keeping one face turned permanently towards the planet. Phobos is irregularly shaped, 27 × 22 × 18 km in size, and is covered with impact craters, the largest, Stickney, being 11.5 km in diameter. There are also several families of parallel grooves or chains of craters, possibly secondary craters from large impacts on Mars. Phobos was discovered in 1877 by A.Hall, and may be a captured asteroid.
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"Phobos." A Dictionary of Astronomy. 1997. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>. "Phobos." A Dictionary of Astronomy. 1997. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O80-Phobos.html "Phobos." A Dictionary of Astronomy. 1997. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-Phobos.html |
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Phobos
Phobos Larger of the two satellites of Mars. Discovered in 1877 by Asaph Hall, it is a dark, irregular body measuring 27 × 22 × 19km (17 × 14 × 12mi). It may well be a captured asteroid. It has two large craters, named Stickney and Hall.
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"Phobos." World Encyclopedia. 2005. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>. "Phobos." World Encyclopedia. 2005. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O142-Phobos.html "Phobos." World Encyclopedia. 2005. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-Phobos.html |
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Phobos
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AILSA ALLABY and MICHAEL ALLABY. "Phobos." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "Phobos." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O13-Phobos.html AILSA ALLABY and MICHAEL ALLABY. "Phobos." A Dictionary of Earth Sciences. 1999. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Phobos.html |
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Phobos
Phobos , in astronomy, innermost moon, or natural satellite, of Mars . |
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"Phobos." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>. "Phobos." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1E1-Phobos.html "Phobos." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Phobos.html |
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Phobos
Phobos •across, boss, Bros, cos, cross, crosse, doss, dross, emboss, en brosse, floss, fosse, gloss, Goss, joss, Kos, lacrosse, loss, moss, MS-DOS, Ross, toss
•Laos
•Áyios Nikólaos, chaos
•Eos • Helios
•Chios, Khíos
•Lesbos • straw boss • Phobos • rooibos
•extrados • kudos • reredos • intrados
•Calvados • Argos • Lagos • logos
•Marcos • telos
•Delos, Melos
•Byblos • candyfloss
•tholos, Vólos
•bugloss • omphalos • Pátmos
•Amos, Deimos, Sámos
•Demos • peatmoss • cosmos • Los Alamos • Lemnos • Hypnos • Minos
•Mykonos • tripos • topos • Atropos
•Ballesteros, pharos, Saros
•Imbros • criss-cross • rallycross • Eros
•albatross • monopteros • Dos Passos
•Náxos • Hyksos • Knossos • Santos
•benthos
•bathos, pathos
•ethos • Kórinthos
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"Phobos." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>. "Phobos." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O233-Phobos.html "Phobos." Oxford Dictionary of Rhymes. 2007. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-Phobos.html |
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