Astro Corner
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Celestial object
P/2011 W1 (PANSTARRS)
2011 W1, P/2011 W1 (PANSTARRS), PANSTARRS
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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 designation2011 W1
JPL SPK-ID1003159
Orbit classJFc
Orbit IDJPL 17
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2455934.5
Eccentricity0.288651559875
Semi-major axis4.656031499 AU
Perihelion distance3.312060744 AU
Orbital period3,669.6 days
Earth MOID2.330760000 AU
Jupiter Tisserand2.925000
Inclination3.71861275°
Absolute magnitude · H—
Comet total magnitude · M17.3000 · K1 19.0000
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
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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