138 Tolosa
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Discovery | |
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Discovered by: | Henri Joseph Perrotin |
Discovery date: | March 19, 1874 |
Orbital characteristics | |
Epoch December 31, 2006 (JD 2454100.5) | |
Aphelion | 425.819 Gm (2.846 AU) |
Perihelion: | 306.744 Gm (2.050 AU) |
Semi-major axis: | 366.282 Gm (2.448 AU) |
Eccentricity: | 0.163 |
Orbital period: | 1399.371 d (3.83 a) |
Avg. orbital speed: | 18.91 km/s |
Mean anomaly: | 168.932° |
Inclination: | 3.208° |
Longitude of ascending node: | 54.948° |
Argument of perihelion: | 260.018° |
Physical characteristics | |
Dimensions: | 45.5 km |
Mass: | 9.9×1016 kg |
Mean density: | ? g/cm³ |
Equatorial surface gravity: | 0.0127 m/s² |
Escape velocity: | 0.0241 km/s |
Rotation period: | ? d |
Albedo: | ? |
Temperature: | ~178 K |
Spectral type: | ? |
Absolute magnitude: | 8.75 |
138 Tolosa is a brightly coloured, stony Main belt asteroid. It was found by Henri Joseph Perrotin on May 19 1874 and named after the Latin name for Toulouse, France.
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137 Meliboea | 138 Tolosa | 139 Juewa
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Near-Earth asteroids · Main belt · Jupiter Trojans · Neptune Trojans · Comets · Kuiper belt · Oort cloud |