Ivar
1627 Ivar is an elongated stony asteroid and near-Earth object of the Amor group, approximately 15×6×6 km. It was discovered on 25 September 1929, by Danish astronomer Ejnar Hertzsprung at Leiden Southern Station, annex to the Johannesburg Observatory in South Africa. It was named after Ivar Hertzsprung, brother of the discoverer. 1627 Ivar was the first asteroid to be imaged by radar, in July 1985 by the Arecibo Observatory.
Amor
관측 횟수: 14,601
1627 Ivar is an elongated stony asteroid and near-Earth object of the Amor group, approximately 15×6×6 km. It was discovered on 25 September 1929, by Danish astronomer Ejnar Hertzsprung at Leiden Southern Station, annex to the Johannesburg Observatory in South Africa. It was named after Ivar Hertzsprung, brother of the discoverer. 1627 Ivar was the first asteroid to be imaged by radar, in July 1985 by the Arecibo Observatory.
궤도 파라미터
반장축
1.863 AU
이심률
0.3973
근일점
1.123 AU
원일점
2.60317 AU
궤도 경사
8.46°
공전 주기
— yr
历元
2461200.5
평균 근점각
28.98°
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
9.12 km
반사율
0.15
밀도
— g/cm³
자전 주기
— h
절대 등급
12.79
궤도 품질
RMS
0.27887
상태 코드
0
궤도 ID
—
