785 Zwetana

785 Zwetana
Discovery
Discovered by Adam Massinger
Discovery site Heidelberg
Discovery date 30 March 1914
Designations
1914 UN
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 95.43 yr (34854 d)
Aphelion 3.1099 AU (465.23 Gm)
Perihelion 2.0273 AU (303.28 Gm)
2.5686 AU (384.26 Gm)
Eccentricity 0.21073
4.12 yr (1503.6 d)
268.20°
 14m 21.912s / day
Inclination 12.769°
71.882°
131.607°
Earth MOID 1.04496 AU (156.324 Gm)
Jupiter MOID 1.92595 AU (288.118 Gm)
Jupiter Tisserand parameter 3.365
Physical characteristics
Mean radius
24.27±0.9 km
8.919 h[2]
8.8882 h (0.37034 d)[1]
0.1245±0.010
9.45

    785 Zwetana is a minor planet orbiting the Sun that was discovered by Adam Massinger, an assistant at the Heidelberg Observatory, on March 30, 1914. Radar observations indicate that it is metallic.

    In 1990, the asteroid was observed from the European Southern Observatory, allowing a composite light curve to be produced that showed a rotation period of 8.919 ± 0.004 hours and a brightness variation of 0.13 ± 0.01 in magnitude.[2]

    References

    1. 1 2 Yeomans, Donald K., "785 Zwetana", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 5 May 2016.
    2. 1 2 Dotto, E.; et al. (June 1992), "M-type asteroids - Rotational properties of 16 objects", Astronomy and Astrophysics Supplement Series, 95 (2), pp. 195–211, Bibcode:1992A&AS...95..195D.

    External links


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