23 Thalia
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Discovery | |
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Discovered by: | J. R. Hind |
Discovery date: | December 15, 1852 |
Orbital characteristics | |
Epoch June 14, 2006 (JD 2453900.5) | |
Aphelion | 484.663 Gm (3.240 AU) |
Perihelion: | 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 (geometric)[2] |
Temperature: | ~164 K |
Spectral type: | S |
Apparent magnitude: | 9.18 (brightest) |
Absolute magnitude: | 6.95 |
23 Thalia is a big main belt asteroid.
It was found by J. R. Hind on December 15, 1852 and named after Thalia, the Muse of comedy and pastoral poetry in Greek mythology.
[change] References
[change] Other websites
- Orbital simulation from JPL (Java) / Ephemeris
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22 Kalliope | 23 Thalia | 24 Themis
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Near-Earth asteroids · Main belt · Jupiter Trojans · Neptune Trojans · Comets · Kuiper belt · Oort cloud |