- Additional Information
-
Additional Information
Short Description Math is a main-belt asteroid about 50 km in diameter. It is a primitive C-type asteroid, which means the surface has a high proportion of carbon; giving it a dark surface that reflects only 4% of the light that falls on it. This asteroid was visited by the NEAR Shoemaker spacecraft during June 1997. The asteroid has a number of extremely large craters, with the individual craters being named for coal fields and basins around the world. 253 Mathilde - Wikipedia, the free encyclopedia Discovered by Johann Palisa Discovery date 12 November 1885 Type Asteroid Satellite of Sun Minor planet number 253 Orbit Prograde Rotation Direct Apoapsis 09 501 157 970 km Periapsis 09 291 232 680 km Semi-major axis 09 396 195 322 km Distance from Sun 01 2.648 402 147 au Eccentricity 0.26492652 Orbital period 4.31 years | 1574.3 days Orbital speed 02 17.98 km/s Mean anomaly 170.584 348° Inclination to the ecliptic 006.742 712 2° Longitude of the ascending node 179.589 36° Argument of periapsis 157.396 42° Diameter/Size 02 52.8 km Dimensions 66×48×46 km Mass 1017×1.033 kg Density 01 1.3 g/cm3 Surface gravity 0.009 89 m/s2 Escape velocity 02 22.9 m/s Rotation period 417.7 hours | 17.40 days | 17 days 9 hours 45 min Albedo geometric 0.0436 Temperature mean 03 174 K Absolute magnitude 10.3 - Comments
-