Iris
Explore asteroids, comets and near-Earth objects with JPL orbital data.
asteroid
Discovered: 1848-08-23
Observations: 5,954
Orbital Parameters
Semi-Major Axis
2.386 AU
Eccentricity
0.2303
Perihelion
1.836 AU
Aphelion
2.935496 AU
Inclination
5.52°
Orbital Period
3.6961 yr
Epoch
2461200.5
Mean Anomaly
115.29°
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.
Physical Parameters
Diameter
199.83 km
Albedo
0.2766
Density
— g/cm³
Rotation Period
7.139 h
Absolute Magnitude
5.7
Orbit Quality
RMS
0.3584
Condition
0
Orbit ID
—
