(2057) Rosemary

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Asteroid
(2057) Rosemary
Properties of the orbit ( animation )
Epoch:  July 31, 2016 ( JD 2,457,600.5)
Orbit type Main outer belt asteroid
Major semi-axis 3.0783  AU
eccentricity 0.2343
Perihelion - aphelion 2.3572 AU - 3.7994 AU
Inclination of the orbit plane 1.4387 °
Length of the ascending node 15.3462 °
Argument of the periapsis 17.7622 °
Time of passage of the perihelion 20th January 2016
Sidereal period 5.40 a
Mean orbital velocity 16.23 km / s
Physical Properties
Medium diameter 12.515 km (± 0.144)
Albedo 0.124 (± 0.027)
Absolute brightness 12.5 mag
history
Explorer Karl Wilhelm Reinmuth
Date of discovery September 7, 1934
Another name 1934 RQ , 1967 TH, 1977 SR
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.

(2057) Rosemary is an asteroid of the outer main belt that was discovered on September 7, 1934 by the German astronomer Karl Wilhelm Reinmuth at the State Observatory Heidelberg-Königstuhl ( IAU code 024).

The mean diameter of the asteroid was determined to be 12.151 km (± 0.144). With an albedo of 0.124 (± 0.027) it has a rather dark surface, comparable to the albedo of the Earth's moon . The solar orbit of (2057) Rosemary is strongly elliptical with an eccentricity of 0.2344 . The asteroid is in a 3-2-1 orbit resonance with Jupiter and Saturn .

(2057) Rosemary was named after Rosemary Birky Hoffmann Scholl, the first wife of Hans Scholl (* 1942), an astronomer who worked at the Heidelberg Astronomical Computing Institute . The asteroid of the outer main belt (2959) was named Scholl after Hans Scholl .

See also

Web links

Individual evidence

  1. ↑ (2057) Rosemary in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
  2. ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Springer, Heidelberg 2012, 6th edition, page 159 (English)