SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 E4

Lovejoy

Lovejoy follows a distinctly cometary orbit: an eccentricity of 0.999 carries it from 0.494 AU at perihelion out to 950.9 AU at aphelion.

comet Observations: 642
Orbital Period · P
10,375 yr
v(q)
59.9 km/s
v(Q)
0 km/s
TJ
0.04
Eccentricity · e
0.999

Orbit and dynamics

Between its closest point (0.494 AU) and its farthest (950.9 AU), the heliocentric distance changes by 950.4 AU over every revolution.

One full revolution takes 10,375 yr (3,789,570 days), computed from the semi-major axis of 475.7 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 88.19° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 59.9 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 = 0.04, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

Astrometry from 642 individual observations underpins this orbit; the fit leaves an RMS residual of 0.7051 arcseconds.

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
475.7 AU
Eccentricity
0.999
Perihelion
0.494 AU
Aphelion
950.9243 AU
Inclination
88.19°
Orbital Period
— yr
Epoch
2457843.5
Mean Anomaly
360.0°

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
—

Orbit Quality

RMS
0.70509
Condition
—
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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