Astro Corner
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Celestial object
271P/van Houten-Lemmon
271P, 271P/van Houten-Lemmon, van Houten-Lemmon
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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 designation271P
JPL SPK-ID1000103
Orbit classJFc
Orbit IDJPL 27
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2456196.5
Eccentricity0.390671324010
Semi-major axis6.974380580 AU
Perihelion distance4.249690084 AU
Orbital period6,727.5 days
Earth MOID3.261720000 AU
Jupiter Tisserand2.862000
Inclination6.85610693°
Absolute magnitude · H—
Comet total magnitude · M17.2000 · K1 15.7500
Diameter—
Albedo—
Last catalogue sync2026-09-18 07:40:03
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
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