Astro Corner
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Celestial object
385P/Hill
385P, 385P/Hill, Hill
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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 designation385P
JPL SPK-ID1003109
Orbit classJFc
Orbit IDJPL 28
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2456253.5
Eccentricity0.402268834412
Semi-major axis4.274886932 AU
Perihelion distance2.555233149 AU
Orbital period3,228.4 days
Earth MOID1.591630000 AU
Jupiter Tisserand2.806000
Inclination16.85565066°
Absolute magnitude · H—
Comet total magnitude · M17.4000 · K1 25.0000
Diameter—
Albedo—
Last catalogue sync2026-09-18 11:40:02
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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Images of this object
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