Halley
Explore asteroids, comets and near-Earth objects with JPL orbital data.
comet
Observations: 8,518
Orbital Parameters
Semi-Major Axis
17.93 AU
Eccentricity
0.9679
Perihelion
0.575 AU
Aphelion
35.284447 AU
Inclination
162.19°
Orbital Period
— yr
Epoch
2439875.5
Mean Anomaly
274.38°
Physical Parameters
Diameter
11.0 km
Albedo
0.04
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
—
Orbit Quality
RMS
0.61032
Condition
0
Orbit ID
—