Astro Corner
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Celestial object
C/2013 D1 (Holvorcem)
2013 D1, C/2013 D1 (Holvorcem), Holvorcem
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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 D1
JPL SPK-ID1003236
Orbit classJFc
Orbit IDJPL 15
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2456377.5
Eccentricity0.780878608992
Semi-major axis11.227243048 AU
Perihelion distance2.460129114 AU
Orbital period13,740.7 days
Earth MOID1.485440000 AU
Jupiter Tisserand2.270000
Inclination10.09356444°
Absolute magnitude · H—
Comet total magnitude · M113.5000 · K1 10.0000
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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Guides & knowledge
Published Guides that reference this canonical object.
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Images of this object
Confirmed manual or plate-solve links to this canonical object. Solver suggestions are excluded until confirmed by the image owner.
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