Astro Corner
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Celestial object
217P/LINEAR
217P, 217P/LINEAR, LINEAR
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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 designation217P
JPL SPK-ID1000345
Orbit classJFc
Orbit IDJPL K253/32
Near-Earth objectYes
Potentially hazardousNo
Epoch · JD2456311.5
Eccentricity0.688799363603
Semi-major axis3.949657808 AU
Perihelion distance1.229136023 AU
Orbital period2,867.1 days
Earth MOID0.311744000 AU
Jupiter Tisserand2.549000
Inclination12.86135994°
Absolute magnitude · H—
Comet total magnitude · M114.6000 · K1 4.5000
Diameter—
Albedo—
Last catalogue sync2026-09-18 08:00:02
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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