Astro Corner
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Celestial object
C/2009 F6 (Yi-SWAN)
2009 F6, C/2009 F6 (Yi-SWAN), Yi-SWAN
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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 designation2009 F6
JPL SPK-ID1003019
Orbit classCOM
Orbit IDJPL 29
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2454973.5
Eccentricity0.997514342474
Semi-major axis512.604405794 AU
Perihelion distance1.274158999 AU
Orbital period4,239,083.1 days
Earth MOID0.504727000 AU
Jupiter Tisserand0.113000
Inclination85.76478554°
Absolute magnitude · H—
Comet total magnitude · M19.7000 · K1 13.0000
Diameter—
Albedo—
Last catalogue sync2026-09-18 11:30:02
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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