1864 Daedalus

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1864 Daedalus
Discovery [1]
Discovered by T. Gehrels
Discovery site Palomar Obs.
Discovery date 24 March 1971
Designations
MPC designation 1864 Daedalus
Named after
Daedalus
(Greek mythology)[2]
1971 FA
Apollo, NEO
Orbital characteristics[1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 44.22 yr (16,152 days)
Aphelion 2.3587 AU
Perihelion 0.5627 AU
1.4607 AU
Eccentricity 0.6147
1.77 yr (645 days)
296.52°
Inclination 22.212°
6.6448°
325.61°
Earth MOID 0.2688 AU
Physical characteristics
Dimensions 3.7 km[1]
2.722±0.114 km[3]
3.00 km (derived)[4]
8.572 h[5]
8.57 h[6]
8.575±0.002 h[7]
0.273±0.055[3]
0.20 (assumed)[4]
B–V = 0.830
U–B = 0.500
SQ (Tholen), Sr (SMASS)
14.85

1864 Daedalus, provisional designation 1971 FA, is a stony asteroid classified as a near-Earth object, that measures about 2.7 to 3.7 kilometers in diameter. It was discovered by Dutch–American astronomer Tom Gehrels at Palomar Observatory, California on 24 March 1971.[8]

It is a member of the Apollo asteroids, a group of near-Earth object with an Earth-crossing orbit. Daedalus orbits the Sun at a distance of 0.6–2.4 AU once every 1.77 years (645 days) and has a SQ/Sr spectral type with an albedo of 0.2 or more.[3][4] Its rotation period has been measured to take 8.572 hours.[5][6][7] It has an Earth Minimum orbit intersection distance (MOID) of 0.2688 AU.[1]

It is named after the Greek mythological figure Daedalus, the builder of King Minos' labyrinth, who was subsequently imprisoned there with his son Icarus. They escaped on wings of feathers and wax, but whereas Icarus was drowned when the wax in his wings melted, Daedalus went on to Sicily and built there a temple to Apollo. There is also a lunar crater called Daedalus.[2]

References

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External links


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