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Ceres
Ceres The first asteroid to be discovered, by G.Piazzi on 1801January1, and hence given the number 1. Ceres is by far the largest asteroid, diameter 940 km, mass 9 × 1020 kg (about 1% the mass of the Moon) and mean density c.2.0 g/cm3. Its rotation period is 9.075 hours. Ceres contains roughly one-third the mass of the entire asteroid belt. It is a member of the new class of dwarf planets, along with Eris and Pluto. Its mean magnitude at opposition is 7.4; only Vesta can ever become brighter. Its orbit has a semimajor axis of 2.767 AU, period 4.60 years, perihelion 2.55 AU, aphelion 2.98 AU, and inclination 10°.6. Ceres is of G class, with a reflectance spectrum that implies a composition resembling the carbonaceous chondrite meteorites. Ceres is the largest member of a small family of asteroids with a mean distance of 2.76–2.80 AU from the Sun and orbital inclinations of 9–11°. Other Ceres family members include (39) Laetitia, (264) Libussa, (374) Burgundia (all S-class), and (446) Aeternitas (A-class).
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"Ceres." A Dictionary of Astronomy. 1997. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "Ceres." A Dictionary of Astronomy. 1997. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O80-Ceres.html "Ceres." A Dictionary of Astronomy. 1997. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-Ceres.html |
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Ceres
Ceres , in astronomy, a dwarf planet, the first asteroid to be discovered. It was found on Jan. 1, 1801, by G. Piazzi . He took three distinct observations; on the basis of these the mathematician Gauss calculated Ceres' orbit with such accuracy that it was found one year later within 0.5° of the predicted position. Ceres is the largest and most massive of the asteroids; it has a diameter of c.590 mi (949 km) and a mass 1/100,000 that of the earth. Its orbit has a semimajor axis of 2.78 astronomical units and a period of 1,681 days. From its discovery until the 1850s, when many additional asteroids began to be identified, Ceres was regarded by many astronomers as a planet. In 2006 the reconsideration by astronomers of Pluto 's status as a planet also led to the reclassification of Ceres as a dwarf planet. |
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"Ceres." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "Ceres." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1E1-Ceres-ast.html "Ceres." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Ceres-ast.html |
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Ceres
Ceres sîr´ēz , in Roman religion and mythology, goddess of grain; daughter of Saturn and Ops. She was identified by the Romans with the Greek Demeter. Her worship was connected with that of the earth goddess and involved not only fertility rites but also rites for the dead. Her chief festival was the Cerealia, celebrated on Apr. 19, and her most famous cult was that of the temple on the Aventine Hill. There is much argument about the origins and nature of her cults. |
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"Ceres." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "Ceres." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1E1-Ceres-gdess.html "Ceres." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Ceres-gdess.html |
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Ceres
Ceres Largest asteroid and the first to be discovered (January 1, 1801, by Guiseppe Piazzi). Ceres' diameter measures 913km (567mi). It orbits in the main asteroid belt, at an average distance from the Sun of 414 million km (257 million mi), the distance of the ‘missing’ planet predicted by Bode's law.
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"Ceres." World Encyclopedia. 2005. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "Ceres." World Encyclopedia. 2005. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O142-Ceres.html "Ceres." World Encyclopedia. 2005. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-Ceres.html |
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Ceres
Ceres The largest solar system asteroid (No. 1), diameter 974 km, approximate mass 1021 kg; rotation period 9.078 hours; orbital period 4.6 years. It was discovered in 1801 by G. Piazzi. It accounts for almost half the total estimated mass of all the asteroids.
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AILSA ALLABY and MICHAEL ALLABY. "Ceres." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "Ceres." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O13-Ceres.html AILSA ALLABY and MICHAEL ALLABY. "Ceres." A Dictionary of Earth Sciences. 1999. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Ceres.html |
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Ceres
Ceres, Argentina, Brazil, Italy, South Africa, USA 1. South Africa (Western Cape): founded in 1854 to process the fruits of the Bokkeveld Valley and therefore named after the Roman goddess of fruit.2. USA (California): also named after the Roman goddess.
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JOHN EVERETT-HEATH. "Ceres." Concise Dictionary of World Place-Names. 2005. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. JOHN EVERETT-HEATH. "Ceres." Concise Dictionary of World Place-Names. 2005. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O209-Ceres.html JOHN EVERETT-HEATH. "Ceres." Concise Dictionary of World Place-Names. 2005. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O209-Ceres.html |
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Ceres
Ceres in Roman mythology, the corn goddess, the equivalent of the Greek Demeter.
In astronomy, Ceres is the name of the first asteroid to be discovered, found by G. Piazzi of Palermo on 1 January 1801. |
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ELIZABETH KNOWLES. "Ceres." The Oxford Dictionary of Phrase and Fable. 2006. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. ELIZABETH KNOWLES. "Ceres." The Oxford Dictionary of Phrase and Fable. 2006. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O214-Ceres.html ELIZABETH KNOWLES. "Ceres." The Oxford Dictionary of Phrase and Fable. 2006. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O214-Ceres.html |
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Ceres
Ceres
•Andes
•Hades, Mercedes
•Archimedes • Thucydides • aphides
•Eumenides, Parmenides
•Maimonides, Simonides
•Euripides • cantharides • Hesperides
•Hebrides
•Aristides, bona fides
•Culdees
•Alcibiades, Hyades, Pleiades
•Cyclades • antipodes • Sporades
•Ganges • Apelles
•tales, Thales
•Achilles, Antilles
•Los Angeles • Ramillies • Pericles
•isosceles • Praxiteles • Hercules
•Empedocles • Sophocles • Damocles
•Androcles • Heracles • Themistocles
•Hermes • Menes • testudines
•Diogenes • Cleisthenes
•Demosthenes
•Aristophanes, Xenophanes
•manganese • Holofernes • editiones principes • herpes
•lares, primus inter pares
•Antares, Ares, Aries, caries
•antifreeze • Ceres • Buenos Aires
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"Ceres." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "Ceres." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O233-Ceres.html "Ceres." Oxford Dictionary of Rhymes. 2007. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-Ceres.html |
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CERES
CERES (ˈsɪəriːz) (USA) Coalition for Environmentally Responsible Economies
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FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "CERES." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "CERES." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O25-CERES.html FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "CERES." The Oxford Dictionary of Abbreviations. 1998. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O25-CERES.html |
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