Tags: Planet.

42 Isis /ˈaɪsɨs/ is a large main-belt asteroid measuring 100.2 km in diameter. It was discovered by N.R. Pogson on May 23 1856 at Oxford. It was Pogson’s first asteroid discovery.The asteroid’s name was chosen by Manuel John Johnson director of the Radcliffe Observatory in Oxford. Although Isis is the name of an Egyptian goddess the name was chosen in homage to Pogson’s astronomer daughter (Elizabeth) Isis Pogson.

42Isis_(Lightcurve_Inversion).png
average speed (km/s)
67752.0
orbital period (μ)
1.20419e+08
periapsis (km)
2.8389e+11
temperature (K)
178.0
absolute magnitude
7.53
albedo
0.171
apparent magnitude
9.18
discovery date
1856-05-23
discoverer
N. R. Pogson
epoch
December 31 2006 (JD 2454100.5)
escape velocity (kmh)
190.8

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