Astro Corner
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Celestial object
125P/Spacewatch
125P, 125P/Spacewatch, Spacewatch
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Reference data
RADate-dependentMoving object · use an ephemeris
DecDate-dependentMoving object · use an ephemeris
Magnitude—
Angular size—
Position angle—
Distance—
Constellation—
Solar System catalogue
JPL SBDBMoving-object reference
Comets and minor planets move against the background sky. Astro Corner therefore keeps their orbital catalogue record separately and does not pretend a single RA/Dec is permanently correct.
Primary designation125P
JPL SPK-ID1000162
Orbit classJFc
Orbit IDJPL 58
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2457245.5
Eccentricity0.512691675239
Semi-major axis3.125715064 AU
Perihelion distance1.523186971 AU
Orbital period2,018.5 days
Earth MOID0.554473000 AU
Jupiter Tisserand2.975000
Inclination9.98803083°
Absolute magnitude · H—
Comet total magnitude · M112.9000 · K1 16.0000
Diameter1.600000 km
Albedo—
Last catalogue sync2026-09-18 07:50:02
Planning coordinates are intentionally separate.A later Horizons ephemeris layer can calculate the object's apparent position for a specific date, time and observing location. Until then, static-sky tools are hidden for this record rather than showing misleading coordinates.
Open JPL Small-Body Database 
Reference transparencySources & data provenanceSee where catalogue identities and imported reference fields came from.4 records
Community observations
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Guides & knowledge
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Images of this object
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