SpaceAtlas Space Object Data
NASA JPL SBDB · 1863 G2

Respighi

Respighi follows a distinctly cometary orbit: an eccentricity of 0.999 carries it from 0.629 AU at perihelion out to 1,364.8 AU at aphelion.

comet Observations: 160
Orbital Period · P
17,838 yr
v(q)
53.1 km/s
v(Q)
0 km/s
TJ
0.08
Eccentricity · e
0.9991

Orbit and dynamics

Between its closest point (0.629 AU) and its farthest (1,364.8 AU), the heliocentric distance changes by 1,364.2 AU over every revolution.

One full revolution takes 17,838 yr (6,515,310 days), computed from the semi-major axis of 682.7 AU.

The high eccentricity (0.999) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 85.5° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 53.1 km/s at perihelion and falls to 0 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Its Tisserand parameter with respect to Jupiter is T_J = 0.08, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

The current orbit solution is based on 160 observations.

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
682.7 AU
Eccentricity
0.9991
Perihelion
0.629 AU
Aphelion
1364.78557 AU
Inclination
85.5°
Orbital Period
— yr
Epoch
2401600.5
Mean Anomaly
0.0°

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
—
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.

Keep exploring

Explore asteroids, comets and near-Earth objects with JPL orbital data.