Astro Corner
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Celestial object
C/2025 A6 (Lemmon)
2025 A6, C/2025 A6 (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 designation2025 A6
JPL SPK-ID1004054
Orbit classCOM
Orbit IDJPL 41
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2460979.5
Eccentricity0.995536214227
Semi-major axis118.711819379 AU
Perihelion distance0.529904130 AU
Orbital period472,432.1 days
Earth MOID0.308136000 AU
Jupiter Tisserand-0.682000
Inclination143.66370730°
Absolute magnitude · H—
Comet total magnitude · M110.4000 · K1 8.7500
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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Published Guides that reference this canonical object.
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Images of this object
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