369 Aëria

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369 Aëria
Discovery
Discovered by A. Borrelly
Discovery date July 4, 1893
Designations
Named after Air
Alternative names 1893 AE
Minor planet category Main belt
Orbital characteristics[1]
Epoch 30 January 2005 (JD 2453400.5)
Aphelion 2.907 AU (434.865 Gm)
Perihelion 2.391 AU (357.76 Gm)
Semi-major axis 2.649 AU (396.312 Gm)
Eccentricity 0.097
Orbital period 4.31 a (1574.921 d)
Average orbital speed 18.3 km/s
Mean anomaly 233.088°
Inclination 12.706°
Longitude of ascending node 94.393°
Argument of perihelion 269.466°
Physical characteristics
Dimensions 60.0 km
Rotation period 4.7781 h
Spectral type M
Absolute magnitude (H) 8.52

    369 Aëria is a large asteroid residing in the asteroid belt that was discovered by the French astronomer A. Borrelly on July 4, 1893 in Marseilles. Based upon the spectrum, it is classified as an M-type asteroid.

    In 1984, the asteroid was observed from the European Southern Observatory, allowing a composite light curve to be produced. This asymmetric curve showed a rotation period of 4.787 ± 0.005 hours and a low brightness variation of 0.08 ± 0.01 in magnitude.[2] The period estimate has since been refined, giving a value of 4.7781 hours.[1]

    References

    1. ↑ 1.0 1.1 "369 Aeria", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-25. 
    2. ↑ Dotto, E. et al. (June 1992), "M-type asteroids - Rotational properties of 16 objects", Astronomy and Astrophysics Supplement Series 95 (2): 195–211, Bibcode:1992A&AS...95..195D. 
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