SpaceAtlas천체 데이터

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 위험 발견일: 1949-07-01 관측 횟수: 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.

궤도 파라미터

반장축
1.078 AU
이심률
0.827
근일점
0.186 AU
원일점
1.969506 AU
궤도 경사
22.8°
공전 주기
1.1198 yr
历元
2461200.5
평균 근점각
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.

물리적 파라미터

직경
1.0 km
반사율
0.51
밀도
— g/cm³
자전 주기
2.2726 h
절대 등급
16.53

궤도 품질

RMS
0.3605
상태 코드
0
궤도 ID
—