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Celestial object
C/1979 Y1 (Bradfield)
1979 Y1, Bradfield, C/1979 Y1 (Bradfield)
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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 designation1979 Y1
JPL SPK-ID1000540
Orbit classCOM
Orbit IDJPL 9
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2444263.5
Eccentricity0.988038136365
Semi-major axis45.586645579 AU
Perihelion distance0.545301238 AU
Orbital period112,422.9 days
Earth MOID0.067138500 AU
Jupiter Tisserand-0.665000
Inclination148.60253291°
Absolute magnitude · H—
Comet total magnitude · M18.5000 · K1 14.0000
Diameter—
Albedo—
Last catalogue sync2026-09-18 08:10:02
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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Images of this object
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