Discovery | |
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Discovered by | August Kopff |
Discovery site | Heidelberg |
Discovery date | 15 August 1909 |
Designations | |
MPC designation | (686) Gersuind |
Alternative designations | 1909 HF |
Minor planet category | main-belt · (middle) Gersuind |
Orbital characteristics | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 106.67 yr (38960 d) |
Aphelion | 3.2844 AU (491.34 Gm) |
Perihelion | 1.8987 AU (284.04 Gm) |
Semi-major axis | 2.5915 AU (387.68 Gm) |
Eccentricity | 0.26736 |
Orbital period (sidereal) | 4.17 yr (1523.8 d) |
Mean anomaly | 236.17° |
Mean motion | 0° 14 10.5 / day |
Inclination | 15.672° |
Longitude of ascending node | 243.103° |
Argument of perihelion | 88.883° |
Physical characteristics | |
Mean radius | 20.565±2.25 km |
Synodic rotation period | 6.3127 h (0.26303 d) |
Geometric albedo | 0.1416±0.037 |
Absolute magnitude (H) | 9.67 |
686 Gersuind is a minor planet orbiting the Sun that was discovered by German astronomer August Kopff on 15 August 1909 from Heidelberg. It was named after a character in Gerhart Hauptmann's play Gersuind.
This object is the namesake of a family of 40–207 asteroids that share similar spectral properties and orbital elements; hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination.
References
- Yeomans, Donald K., "686 Gersuind", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 5 May 2016.
- Novaković, Bojan; et al. (November 2011), "Families among high-inclination asteroids", Icarus, vol. 216, no. 1, pp. 69–81, arXiv:1108.3740, Bibcode:2011Icar..216...69N, doi:10.1016/j.icarus.2011.08.016.
External links
- 686 Gersuind at AstDyS-2, Asteroids—Dynamic Site
- 686 Gersuind at the JPL Small-Body Database
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