Astro Corner
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Celestial object
300 Geraldina (A890 TB)
300, 300 Geraldina (A890 TB), Geraldina
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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 designation300
JPL SPK-ID20000300
Orbit classOMB
Orbit IDJPL 75
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2461200.5
Eccentricity0.059034813087
Semi-major axis3.203295940 AU
Perihelion distance3.014189963 AU
Orbital period2,094.1 days
Earth MOID2.009640000 AU
Jupiter Tisserand3.191000
Inclination0.72513768°
Absolute magnitude · H9.7500
Diameter67.373000 km
Albedo0.052000
Last catalogue sync2026-09-12 01:00:07
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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