Astro Corner
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Celestial object
C/2023 TD22 (Lemmon)
2023 TD22, C/2023 TD22 (Lemmon), 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 designation2023 TD22
JPL SPK-ID1004020
Orbit classCOM
Orbit IDJPL 27
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2460537.5
Eccentricity0.950985305124
Semi-major axis48.083568409 AU
Perihelion distance2.356801434 AU
Orbital period121,784.9 days
Earth MOID1.353290000 AU
Jupiter Tisserand-1.746000
Inclination170.48964247°
Absolute magnitude · H—
Comet total magnitude · M112.8000 · K1 9.2500
Diameter—
Albedo—
Last catalogue sync2026-09-18 12:50:02
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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Guides & knowledge
Published Guides that reference this canonical object.
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Images of this object
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