Astro Corner
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Celestial object
C/2023 A3 (Tsuchinshan-ATLAS)
2023 A3, C/2023 A3 (Tsuchinshan-ATLAS), Tsuchinshan-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 designation2023 A3
JPL SPK-ID1003913
Orbit classHYP
Orbit IDJPL 113
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2460448.5
Eccentricity1.000095368541
Semi-major axis-4104.394095059 AU
Perihelion distance0.391430075 AU
Orbital period—
Earth MOID0.275055000 AU
Jupiter Tisserand-0.583000
Inclination139.11210908°
Absolute magnitude · H—
Comet total magnitude · M18.9000 · K1 5.5000
Diameter—
Albedo—
Last catalogue sync2026-09-18 12:40:02
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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