Astro Corner
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Celestial object
209P/LINEAR
209P, 209P/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 designation209P
JPL SPK-ID1000487
Orbit classJFc
Orbit IDJPL 155
Near-Earth objectYes
Potentially hazardousNo
Epoch · JD2456087.5
Eccentricity0.681444912304
Semi-major axis2.949537148 AU
Perihelion distance0.939590065 AU
Orbital period1,850.2 days
Earth MOID0.025145900 AU
Jupiter Tisserand2.791000
Inclination21.33781492°
Absolute magnitude · H—
Comet total magnitude · M118.1000 · K1 4.5000
Diameter—
Albedo—
Last catalogue sync2026-09-18 08:10:02
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
Confirmed manual or plate-solve links to this canonical object. Solver suggestions are excluded until confirmed by the image owner.
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