|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
Themis family
Themis family A Hirayama family of asteroids in the outer part of the main asteroid belt at a mean distance of 3.13 AU from the Sun. It is one of the most populous and best-defined families, consisting of a core of large objects surrounded by a cloud of predominantly smaller ones. The core includes (24) Themis, (62) Erato, (90) Antiope, (468) Lina, (526) Jena, and (846) Lipperta. Most family members have low albedos and are of the carbonaceous C class. Themis itself is a C-class asteroid, diameter 228 km, discovered in 1853 by the Italian astronomer Annibale de Gasparis (1819–92). The orbit of Themis has a semimajor axis of 3.128 AU, period 5.53 years, perihelion 2.71 AU, aphelion 3.50 AU, and inclination 0 °.8.
|
|
|
Cite this article
"Themis family." A Dictionary of Astronomy. 1997. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "Themis family." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O80-Themisfamily.html "Themis family." A Dictionary of Astronomy. 1997. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-Themisfamily.html |
|
Themis
Themis , in Greek religion and mythology, a Titan. Sometimes identified as an earth goddess, she was more commonly a goddess of law, order, and justice. She was the mother by Zeus of the Horae (the Seasons) and the Moerae (the Fates). It was also said that she was the mother of Prometheus by Iapetus. |
|
|
Cite this article
"Themis." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "Themis." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1E1-Themis.html "Themis." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Themis.html |
|
Themis
|
|
|
Cite this article
ELIZABETH KNOWLES. "Themis." The Oxford Dictionary of Phrase and Fable. 2006. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. ELIZABETH KNOWLES. "Themis." The Oxford Dictionary of Phrase and Fable. 2006. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O214-Themis.html ELIZABETH KNOWLES. "Themis." The Oxford Dictionary of Phrase and Fable. 2006. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O214-Themis.html |
|