(279) Thule
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Asteroid (279) Thule |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 4,271 AU |
| eccentricity | 0.01 |
| Perihelion - aphelion | 4.23 AU - 4.312 AU |
| Inclination of the orbit plane | 2.3 ° |
| Length of the ascending node | 73.6 ° |
| Argument of the periapsis | 84.2 ° |
| Time of passage of the perihelion | March 15, 2007 |
| Sidereal period | 8 a 302 d |
| Mean orbital velocity | 14.4 km / s |
| Physical Properties | |
| Medium diameter | 127 km |
| Albedo | 0.0412 |
| Rotation period | 11 h 57 min |
| Absolute brightness | 8.57 likes |
| Spectral class | D. |
| history | |
| Explorer | Johann Palisa |
| Date of discovery | October 25, 1888 |
| 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. | |
(279) Thule is an asteroid of the outer main asteroid belt discovered by Johann Palisa on October 25, 1888 .
Thule moves on the outer limit of the main belt. Hence it was named after the mythical island of Thule , which in ancient times was considered to be the outermost limit of the known world.
Thule orbits the sun at a distance of 4.2240 ( perihelion ) to 4.3297 ( aphelion ) astronomical units in 8.845 years , the orbit showing a 3: 4 resonance with the planet Jupiter . The orbit is slightly inclined towards the ecliptic at 2.3381 ° , the orbit eccentricity is 0.0124.
With a diameter of 127 kilometers, Thule is one of the larger asteroids in the main belt. It has a dark, carbon-rich surface with an albedo of 0.041. It rotates on its own axis in 7.440 hours.