1064 Aethusa

1064 Aethusa
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 2 August 1926
Designations
MPC designation 1064 Aethusa
Named after
 Aethusa cynapium (fool's parsley)[2]
1926 PA · 1962 HF
main-belt
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 89.08 yr (32,535 days)
Aphelion 2.9926 AU
Perihelion 2.0930 AU
2.5428 AU
Eccentricity 0.1768
4.05 yr (1481.0 days)
331.05°
Inclination 9.5007°
280.58°
20.605°
Earth MOID 1.0799 AU
Physical characteristics
Dimensions 18.7 km
8.621 h
0.3202
10.6

    1064 Aethusa, provisional designation 1926 PA, is a main-belt asteroid, discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 2 August 1926. It is orbiting the Sun in a distance of 2.09−2.99 AU, measures about 19 kilometers in diameter, and has a high geometric albedo of 0.32.[1]

    Measurements made with the IRAS observatory give a diameter of 20.64 ± 1.37 km and a geometric albedo of 0.27 ± 0.03. By comparison, the MIPS photometer on the Spitzer Space Telescope gives a diameter of 8.621 ± 4.28 km and a geometric albedo of 0.17 ± 0.04.[3] Other photometric observations of the asteroid collected during 2006 show a rotation period of 8.621 ± 0.004 hours with a brightness variation of 0.18 ± 0.02 magnitude.[4]

    The asteroid is named after a genus in the carrot family, "Aethusa", of which the plant Aethusa cynapium (fool's parsley) is the only member.[2]

    See also

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1064 Aethusa (1926 PA)" (2015-08-30 last obs.). Jet Propulsion Laboratory. Retrieved October 2015.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1064) Aethusa. Springer Berlin Heidelberg. p. 91. ISBN 978-3-540-29925-7. Retrieved October 2015.
    3. ↑ Ryan, Erin Lee; et al. (April 2012), "The Kilometer-Sized Main Belt Asteroid Population as Revealed by Spitzer", eprint arXiv, arXiv:1204.1116, Bibcode:2012arXiv1204.1116R.
    4. ↑ Warner, Brian D. (December 2006), "Asteroid lightcurve analysis at the Palmer Divide Observatory - March - June 2006", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 33 (4): 85–88, Bibcode:2006MPBu...33...85W.

    External links


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