(1685) Toro
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Asteroid (1685) Toro |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Apollo type |
| Major semi-axis | 1.3671 AU |
| eccentricity | 0.4359 |
| Perihelion - aphelion | 0.7712 AU - 1.9630 AU |
| Inclination of the orbit plane | 9.377 ° |
| Sidereal period | 583.8 days |
| Mean orbital velocity | 25.47 km / s |
| Physical Properties | |
| Medium diameter | 3 km |
| Albedo | 0.31 |
| Rotation period | 10.196 hours |
| Absolute brightness | 14 likes |
| Spectral class | S type |
| history | |
| Explorer | Carl A. Wirtanen |
| Date of discovery | July 17, 1948 |
| Another name | 1948 OA |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(1685) Toro is a Planetoid from Apollo-type .
The near-earth asteroid was discovered on July 17, 1948 by Carl A. Wirtanen at the Lick Observatory on Mount Hamilton. Toro is named after the maiden name of the wife (Betulia Toro) of Samuel Herrick, an American engineer and astronomer who studied the orbit of this asteroid.
Toro moves between 0.7712 AU ( perihelion ) and 1.9630 AU ( aphelion ) around the Sun in around 1.6 years . The orbit is inclined 9.377 ° to the ecliptic, the orbital eccentricity is 0.4359.
Toro is in an interesting orbit in 8: 5 resonance with Earth on the one hand and 13: 5 resonance with Venus on the other. Its orbit therefore brings it close to earth every eight years.
Toro is classified as an S-type and rotates on its own axis in 10.196 hours. The albedo of its surface is 0.31 and its diameter is estimated to be around 3 kilometers.