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Icarus

1566 Icarus is a large near-Earth object of the Apollo group of Earth-crossing asteroids, and the lowest-numbered potentially hazardous asteroid. It has an extremely eccentric orbit (0.83) and measures approximately 1.4 km (0.87 mi) in diameter. In 1968, it became the first asteroid ever observed by radar. Its orbit brings it closer to the Sun than Mercury and further out than the orbit of Mars, which also makes it a Mercury-, Venus-, and Mars-crossing asteroid. This stony asteroid and relatively fast rotator with a period of 2.27 hours was discovered on 27 June 1949, by German astronomer Walter Baade at the Palomar Observatory in California. It was named after the mythological Icarus.

Icarus
Apollo PD Découvert le: 1949-07-01 Observations: 1,796
1566 Icarus is a large near-Earth object of the Apollo group of Earth-crossing asteroids, and the lowest-numbered potentially hazardous asteroid. It has an extremely eccentric orbit (0.83) and measures approximately 1.4 km (0.87 mi) in diameter. In 1968, it became the first asteroid ever observed by radar. Its orbit brings it closer to the Sun than Mercury and further out than the orbit of Mars, which also makes it a Mercury-, Venus-, and Mars-crossing asteroid. This stony asteroid and relatively fast rotator with a period of 2.27 hours was discovered on 27 June 1949, by German astronomer Walter Baade at the Palomar Observatory in California. It was named after the mythological Icarus.

Paramètres orbitaux

Demi-grand axe
1.078 AU
Excentricité
0.827
Périhélie
0.186 AU
Aphélie
1.969506 AU
Inclinaison
22.8°
Période orbitale
1.1198 yr
Ère
2461200.5
Anomalie moyenne
329.18°

Orbit diagram

The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.

Paramètres physiques

Diamètre
1.0 km
Albedo
0.51
Densité
— g/cm³
Période de rotation
2.2726 h
Magnitude absolue
16.53

Qualité orbitale

RMS
0.3605
Code de condition
0
ID orbite
—