Astro Corner
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Celestial object
C/1989 Y2 (McKenzie-Russell)
1989 Y2, C/1989 Y2 (McKenzie-Russell), McKenzie-Russell
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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 designation1989 Y2
JPL SPK-ID1001243
Orbit classCOM
Orbit IDJPL 2
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2447890.5
Eccentricity0.999996489782
Semi-major axis562869.874478461 AU
Perihelion distance1.975796215 AU
Orbital period154,244,765,568.9 days
Earth MOID0.996237000 AU
Jupiter Tisserand-1.641000
Inclination160.33627526°
Absolute magnitude · H—
Comet total magnitude · M110.0000 · K1 10.0000
Diameter—
Albedo—
Last catalogue sync2026-09-18 09:10:02
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
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