SpaceAtlas Space Object Data
NASA JPL SBDB · 213P

Van Ness

Van Ness follows a distinctly cometary orbit: an eccentricity of 0.408 carries it from 1.983 AU at perihelion out to 4.713 AU at aphelion.

comet Observations: 367
Orbital Period · P
6.13 yr
v(q)
25.1 km/s
v(Q)
10.6 km/s
TJ
3
Eccentricity · e
0.4076

Orbit and dynamics

Between its closest point (1.983 AU) and its farthest (4.713 AU), the heliocentric distance changes by 2.73 AU over every revolution.

One full revolution takes 6.13 yr (2,238 days), computed from the semi-major axis of 3.348 AU.

The high eccentricity (0.408) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 10.38° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 25.1 km/s at perihelion and falls to 10.6 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 3, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

Neither a measured diameter nor a reliable absolute magnitude is available for Van Ness, so its physical size remains unconstrained.

Observation record and orbit quality

Astrometry from 367 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5493 arcseconds.

Condition code U = 3 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

About these computed values

Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Orbital Parameters

Semi-Major Axis
3.348 AU
Eccentricity
0.4076
Perihelion
1.983 AU
Aphelion
4.712645 AU
Inclination
10.38°
Orbital Period
— yr
Epoch
2458161.5
Mean Anomaly
22.63°

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.

3D orbit (interactive)

Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.

Close approaches

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
—

Orbit Quality

RMS
0.54925
Condition
3
Orbit ID
—
Data source: NASA JPL Small-Body Database . Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

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