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Solar
Comet

Spacewatch

125P/Spacewatch

Where is it now

Distance from Sun
4.691 AU
True anomaly
172.92°
As of
29 August 2026

Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.

Orbital elements

Semi-major axis
3.126 AU
Eccentricity
0.5127
Inclination
9.99°
Orbital period
5.53 years
Perihelion
1.523 AU
Aphelion
4.728 AU
Longitude of ascending node
153.2°
Argument of periapsis
87.15°
Epoch · J2000
JD 2456340.58584 (perihelion)

Visual & observation

Absolute magnitude (H)
12.9
Spectral type
JFc

Sources