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
Beobachtungen: 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.
Bahnparameter
Halbachse
1.863 AU
Exzentrizität
0.3973
Perihel
1.123 AU
Aphel
2.60317 AU
Inklination
8.46°
Umlaufzeit
— yr
Äon
2461200.5
Mittlere Anomalie
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.
Physikalische Parameter
Durchmesser
9.12 km
Albedo
0.15
Dichte
— g/cm³
Rotationszeit
— h
Absolute Helligkeit
12.79
Bahnqualität
RMS
0.27887
Zustandscode
0
Bahn-ID
—
