Astro Corner
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Celestial object
53 Kalypso (A858 GA)
53, 53 Kalypso (A858 GA), Kalypso
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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 designation53
JPL SPK-ID20000053
Orbit classMBA
Orbit ID206
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2461200.5
Eccentricity0.202984274673
Semi-major axis2.618079226 AU
Perihelion distance2.086650313 AU
Orbital period1,547.3 days
Earth MOID1.106850000 AU
Jupiter Tisserand3.371000
Inclination5.18215523°
Absolute magnitude · H8.8800
Diameter97.262000 km
Albedo0.028000
Last catalogue sync2026-09-11 01:40:06
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
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Images of this object
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