(138) Tolosa
Asteroid (138) Tolosa |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Major semi-axis | 2,448 AU |
eccentricity | 0.162 |
Perihelion - aphelion | 2.05 AU - 2.846 AU |
Inclination of the orbit plane | 3.2 ° |
Length of the ascending node | 54.9 ° |
Argument of the periapsis | 259.8 ° |
Time of passage of the perihelion | January 10, 2009 |
Sidereal period | 3 a 304 d |
Mean orbital velocity | 18.9 km / s |
Physical Properties | |
Medium diameter | approx. 53 km |
Albedo | 0.2699 |
Rotation period | 10 h 6 min |
Absolute brightness | 8.75 likes |
Spectral class | S. |
history | |
Explorer | J. Perrotin |
Date of discovery | May 19, 1874 |
Another name | A909 SB |
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. |
(138) Tolosa is an asteroid of the main asteroid belt discovered on May 19, 1874 by Henri Joseph Perrotin from Toulouse ( France ). Tolosa is the Roman name for Toulouse.
Tolosa ranges from 2.051 ( perihelion ) astronomical units to 2.846 astronomical units ( aphelion ) in 3.83 years around the sun . The orbit is 3.208 ° inclined to the ecliptic , the orbital eccentricity is 0.162.
Tolosa has a diameter of 46 km. It has a light, silicate-rich surface with an albedo of 0.270. It rotates around its own axis in around 10 hours and 6 minutes.