Astro Corner
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Celestial object
C/2004 F4 (Bradfield)
2004 F4, Bradfield, C/2004 F4 (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 designation2004 F4
JPL SPK-ID1000491
Orbit classCOM
Orbit IDJPL 33
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2453157.5
Eccentricity0.999291989502
Semi-major axis237.660852283 AU
Perihelion distance0.168266378 AU
Orbital period1,338,242.8 days
Earth MOID0.319646000 AU
Jupiter Tisserand0.251000
Inclination63.16457172°
Absolute magnitude · H—
Comet total magnitude · M111.3000 · K1 17.5000
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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