Astro Corner
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Celestial object
C/1972 E1 (Bradfield)
1972 E1, Bradfield, C/1972 E1 (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 designation1972 E1
JPL SPK-ID1001145
Orbit classCOM
Orbit IDJPL 2
Near-Earth objectNo
Potentially hazardousNo
Epoch · JD2441431.5
Eccentricity0.998140798121
Semi-major axis498.718434167 AU
Perihelion distance0.927218250 AU
Orbital period4,068,005.8 days
Earth MOID0.358281000 AU
Jupiter Tisserand-0.652000
Inclination123.69268845°
Absolute magnitude · H—
Comet total magnitude · M19.0000 · K1 6.7500
Diameter—
Albedo—
Last catalogue sync2026-09-18 09:00:03
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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