11573 Helmholtz

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11573 Helmholtz
Discovery
Perihelion
2.3952 AU
3.2582 AU
Eccentricity0.2649
5.88 yr (2,148 d)
21.116°
0° 10m 3.36s / day
Inclination2.2499°
310.61°
127.67°
Physical characteristics
Mean diameter
13 km (est. at 0.057)[5]
13.2[1]

11573 Helmholtz, provisional designation 1993 SK3, is a Zhongguo

Lutz Schmadel at the Karl Schwarzschild Observatory in Tautenburg, Germany. It is one of few asteroids located in the 2:1 resonance with Jupiter. The asteroid was named for German physicist Hermann von Helmholtz.[2]

Orbit and classification

Helmholtz is a non-

Griqua group, the orbits of the Zhongguos are stable over half a billion years.[3][4]

It orbits the Sun in the

Crimea–Nauchnij in December 1982. The body's observation arc begins at Palomar Observatory in January 1989.[2]

Physical characteristics

Diameter and albedo

Based on a generic magnitude-to-diameter conversion, Helmholtz measures 13 kilometer in diameter for an

albedo of 0.057, which is typical for carbonaceous asteroids. If the body was of stony rather than carbonaceous composition, its estimated diameter would be less than 7 kilometer.[5]

Rotation period

As of 2018, no rotational

rotation period, pole and shape remain unknown.[1][6]

Naming

This

Helmholtz on Mars are also named in his honor.[8][9]

References

  1. ^ a b c d e f "JPL Small-Body Database Browser: 11573 Helmholtz (1993 SK3)" (2017-11-24 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2018.
  2. ^ a b c d "11573 Helmholtz (1993 SK3)". Minor Planet Center. Retrieved 2 February 2018.
  3. ^ a b "Asteroid 11573 Helmholtz – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
  4. ^ . Retrieved 2 February 2018.
  5. ^ a b "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 2 February 2018.
  6. ^ "LCDB Data for (11573) Helmholtz". Asteroid Lightcurve Database (LCDB). Retrieved 2 February 2018.
  7. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 2 February 2018.
  8. ^ "Lunar crater Helmholtz". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  9. ^ "Martian crater Helmholtz". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

External links