Astro Corner
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Celestial object
C/2020 Y2 (ATLAS)
2020 Y2, ATLAS, C/2020 Y2 (ATLAS)
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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 Y2
JPL SPK-ID1003750
Orbit classCOM
Orbit IDJPL 86
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2459825.5
Eccentricity0.997005119772
Semi-major axis1045.948256499 AU
Perihelion distance3.132489752 AU
Orbital period12,355,596.8 days
Earth MOID2.893010000 AU
Jupiter Tisserand-0.425000
Inclination101.29776629°
Absolute magnitude · H—
Comet total magnitude · M110.5000 · K1 4.5000
Diameter—
Albedo—
Last catalogue sync2026-09-18 12:30:02
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
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
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