Astro Corner
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Celestial object
409P/LONEOS-Hill
409P, 409P/LONEOS-Hill, LONEOS-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 designation409P
JPL SPK-ID1002317
Orbit classJFc
Orbit IDJPL 41
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2456836.5
Eccentricity0.710721125058
Semi-major axis6.053051676 AU
Perihelion distance1.751019979 AU
Orbital period5,439.5 days
Earth MOID0.765290000 AU
Jupiter Tisserand2.310000
Inclination17.14458714°
Absolute magnitude · H—
Comet total magnitude · M114.2000 · K1 8.7500
Diameter—
Albedo—
Last catalogue sync2026-09-18 10:40:02
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
No public community observations for this object yet.
Guides & knowledge
Published Guides that reference this canonical object.
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Images of this object
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