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23 Thalia
From Wikipedia, the free encyclopedia
| Discovery | |
|---|---|
| Discovered by: | J. R. Hind |
| Discovery date: | December 15, 1852 |
| Alternative names: | 1938 CL; 1974 QT2 |
| Minor planet category: | Main belt |
| Orbital characteristics | |
| Epoch June 14, 2006 (JD 2453900.5) | |
| Aphelion distance: | 484.663 Gm (3.240 AU) |
| Perihelion distance: | 301.483 Gm (2.015 AU) |
| Semi-major axis: | 393.073 Gm (2.628 AU) |
| Eccentricity: | 0.233 |
| Orbital period: | 1555.679 d (4.26 a) |
| Avg. orbital speed: | 18.12 km/s |
| Mean anomaly: | 328.687° |
| Inclination: | 10.145° |
| Longitude of ascending node: | 67.228° |
| Argument of perihelion: | 59.311° |
| Physical characteristics | |
| Dimensions: | 107.5 km |
| Mass: | 1.3×1018? kg |
| Mean density: | 2.0? g/cm³ |
| Equatorial surface gravity: | 0.0300? m/s² |
| Escape velocity: | 0.0568? km/s |
| Rotation period: | 0.5128 d (12.308 h) [1] |
| Albedo: | 0.2536 [2] |
| Temperature: | ~164 K |
| Spectral type: | S |
| Absolute magnitude: | 6.95 |
23 Thalia (IPA: [θəˈlaɪə]) is a large main belt asteroid.
It was discovered by J. R. Hind on December 15, 1852 and named after Thalia, the Muse of comedy and pastoral poetry in Greek mythology.
- ^ http://www.psi.edu/pds/archive/lc.html
- ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_ALBEDOS_V1_1/data/albedos.tab
| Minor planets | ||
|---|---|---|
| Previous minor planet | 23 Thalia | Next minor planet |
| List of asteroids | ||
Vulcanoids · Near-Earth asteroids · Main belt · Jupiter Trojans · Centaurs · Damocloids · Comets · Trans-Neptunians (Kuiper belt • Scattered disc • Oort cloud)
For other objects and regions, see Asteroid groups and families, Binary asteroids, Asteroid moons and the Solar System.
For a complete listing, see List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.