Astro Corner
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Celestial object
C/2013 J3 (McNaught)
2013 J3, C/2013 J3 (McNaught), McNaught
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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 designation2013 J3
JPL SPK-ID1003256
Orbit classCOM
Orbit IDJPL 24
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2456476.5
Eccentricity0.997957657781
Semi-major axis1952.998658178 AU
Perihelion distance3.988691614 AU
Orbital period31,524,727.7 days
Earth MOID3.136960000 AU
Jupiter Tisserand-1.168000
Inclination118.22539785°
Absolute magnitude · H—
Comet total magnitude · M16.9000 · K1 14.2500
Diameter—
Albedo—
Last catalogue sync2026-09-18 11:50:02
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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Published Guides that reference this canonical object.
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Images of this object
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