Tags: Planet.

253 Mathilde /məˈtɪldə/ is a main-belt asteroid about 50 km in diameter that was discovered by Johann Palisa in 1885. It has a relatively elliptical orbit that requires more than four years to circle the Sun. This asteroid has an unusually slow rate of rotation requiring 17.4 days to complete a 360° revolution about its axis.

(253)_mathilde.jpg
apoapsis (km)
5.01281e+11, 5.01334e+11
average speed (km/s)
64728.0
density (μ3)
1300.0
orbital period (μ)
1.35764e+08
periapsis (km)
2.90134e+11, 2.90564e+11
temperature (K)
174.0
absolute magnitude
10.2
albedo
0.0436
discovery date
1885-11-12
discoverer
Johann Palisa
epoch
August 27 2011 (JD 2455800.5)
escape velocity (kmh)
82.44
former name
1949 OL1 A915 TN
rotation period (s)
864.0, 1.5039e+06

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