Astro Corner
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Celestial object
C/2020 B2 (Lemmon)
2020 B2, C/2020 B2 (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 designation2020 B2
JPL SPK-ID1003660
Orbit classCOM
Orbit IDJPL 6
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2458883.5
Eccentricity0.959221800768
Semi-major axis67.880567571 AU
Perihelion distance2.768047308 AU
Orbital period204,275.7 days
Earth MOID1.893620000 AU
Jupiter Tisserand1.227000
Inclination55.70413763°
Absolute magnitude · H—
Comet total magnitude · M117.2000 · K1 4.5000
Diameter—
Albedo—
Last catalogue sync2026-09-18 12:20:03
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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Images of this object
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