| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,513,745,961 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
Helene |
Also found in: Dictionary/thesaurus, Wikipedia | 0.09 sec. |
|
Helene (həlēn`, hĕl`ənə), in astronomy, one of the named moons, or natural satellites, of Saturn Saturn, in astronomy, 6th planet from the sun.
Astronomical and Physical Characteristics of SaturnSaturn's orbit lies between those of Jupiter and Uranus; its mean distance from the sun is c.886 million mi (1. ..... Click the link for more information. . Also known as Saturn XII (or S12), Helene is an irregularly shaped (nonspherical) body measuring about 22 mi (36 km) by 20 mi (32 km) by 18 mi (30 km); it orbits Saturn at a mean distance of 234,500 mi (377,400 km) and has an orbital period of 2.7369 earth days—the rotational period is unknown but is assumed to be the same as the orbital period. It was discovered by French astronomers P. Laques and J. Lecacheaux in 1980 during ground-based observations of Saturn. Another moon, Dione Dione (dīō`nē), in astronomy, one of the named moons, or natural satellites, of Saturn . ..... Click the link for more information. , is co-orbital with Helene; that is, Helene orbits Saturn at the same distance as Dione but precedes Dione by about 60°. Before the present name was adopted, the moon was referred to as "Dione-B" and "Electra." How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in classic literature | |
|---|---|---|
To be the most beautiful peeress in England is perhaps for Helene a happier fate than to be the first queen of a new dynasty. she added, addressing Prince Vasili, and without waiting for an answer she turned to speak to his daughter, the beautiful Helene. to hear La Belle Helene," said the landowner, a pleasant smile lighting up his shrewd old face. |
| Encyclopedia |
| Free Tools: |
For surfers:
Browser extension |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|