(9973) Szpilman

Asteroid (9973) Szpilman

Orbit of (9973) Szpilman
Properties of the orbit ( animation ) Epoch: February 16, 2017 ( JD 2,457,800.5)
Orbit type	Middle main belt asteroid
Major semi-axis	2.5311 AU
eccentricity	0.1717
Perihelion - aphelion	2.0966 AU - 2.9656 AU
Inclination of the orbit plane	1.4938 °
Length of the ascending node	296.97373 °
Argument of the periapsis	104.6547 °
Time of passage of the perihelion	13th September 2018
Sidereal period	4.03 a
Mean orbital velocity	18.72 km / s
Physical Properties
Absolute brightness	14.3 mag
history
Explorer	Eric Walter Elst
Date of discovery	July 12, 1993
Another name	1993 NB ₂ , 1949 QJ, 1979 BV ₂ , 1991 AM ₃
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.

(9973) Szpilman is an asteroid of the main central belt , which was discovered on July 12, 1993 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809). There had already been several sightings of the asteroid: in August 1949 under the provisional designation 1949 QJ at the State Observatory Heidelberg-Königstuhl , on January 27 and 29, 1979 (1979 BV ₂ ) at the Palomar Observatory in California and on January 9 , 1979 . and January 16, 1991 (1991 AM ₃ ) at the Karl Schwarzschild Observatory in the Tautenburger Forest .

(9973) Szpilman was named on June 14, 2003 after the Polish pianist Władysław Szpilman (1911–2000), who survived the Warsaw Ghetto .

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