445 Edna

445 Edna
Discovery
Discovered by E. F. Coddington
Discovery date 2 October 1899
Designations
1899 EX
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 116.53 yr (42563 d)
Aphelion 3.82552 AU (572.290 Gm)
Perihelion 2.57569 AU (385.318 Gm)
3.20060 AU (478.803 Gm)
Eccentricity 0.19525
5.73 yr (2091.4 d)
16.64 km/s
190.102°
 10m 19.668s / day
Inclination 21.2944°
292.111°
81.2763°
Earth MOID 1.67566 AU (250.675 Gm)
Jupiter MOID 1.99042 AU (297.763 Gm)
Jupiter Tisserand parameter 3.059
Physical characteristics
Dimensions 87.17±2.1 km[1]
88.60 ± 4.10 km[2]
Mass (3.47 ± 0.78) × 1018 kg[2]
Mean density
9.52 ± 2.50 g/cm3[2]
19.97 h (0.832 d)
0.0447±0.002
9.29

    445 Edna is a large Main belt asteroid.

    It was discovered by E. F. Coddington on October 2, 1899 at Mount Hamilton, California. It was his third and final asteroid discovery.

    References

    1. 1 2 "445 Edna (1899 EX)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
    2. 1 2 3 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336Freely accessible, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.

    External links


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