Cacus
161989 Cacus is a stony asteroid, classified as a near-Earth object and a potentially hazardous asteroid of the Apollo group, approximately 1 kilometer in diameter. It was discovered on 8 February 1978, by German astronomer Hans-Emil Schuster at ESO's La Silla Observatory in northern Chile. Its orbit is confined between Venus and Mars.
Apollo
Beobachtungen: 1,798
161989 Cacus is a stony asteroid, classified as a near-Earth object and a potentially hazardous asteroid of the Apollo group, approximately 1 kilometer in diameter. It was discovered on 8 February 1978, by German astronomer Hans-Emil Schuster at ESO's La Silla Observatory in northern Chile. Its orbit is confined between Venus and Mars.
Bahnparameter
Halbachse
1.123 AU
Exzentrizität
0.2139
Perihel
0.883 AU
Aphel
1.36321 AU
Inklination
26.07°
Umlaufzeit
— yr
Äon
2461200.5
Mittlere Anomalie
115.93°
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
1.9 km
Albedo
0.09
Dichte
— g/cm³
Rotationszeit
— h
Absolute Helligkeit
17.31
Bahnqualität
RMS
0.47326
Zustandscode
0
Bahn-ID
—