Bradfield is a comet in the Comet orbit class. Its orbit takes it from 0.26 AU to 1,891.96 AU from the Sun; one orbit takes 29,101.9 years. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 71.172 AU
- True anomaly
- 173.2°
- Distance from Earth
- 71.189 AU
- As of
- 25 October 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 20h 07m 37s
- Declination
- -14° 28′ 00″
- Constellation
- Capricornus
- Distance from Earth
- 71.19 AU
- Elongation from the Sun
- 88.38° — well clear of the Sun
Visible from both hemispheres.
From your location
See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 946.11 AU
- Eccentricity
- 0.9997
- Inclination
- 138.59°
- Orbital period
- 29,101.9 years
- Perihelion
- 0.26 AU
- Aphelion
- 1,891.961 AU
- Longitude of ascending node
- 115.35°
- Argument of periapsis
- 358.29°
- Epoch · J2000
- 2444630.5
- Orbit class · COM
- Comet
- Earth MOID · 233.8 LD
- 0.6007 AU
- Tisserand (Jupiter)
- -0.468
Orbit quality
- Observations used
- 32
- Data arc
- 405 days
- First observed
- 18 July 1980
- Last observed
- 27 August 1981
- Residual RMS
- 0.75 ″
- Solution · Otto Matic
- 15 April 2021
Discovery & classification
Also known as 1980 Y1
Sources
- visual properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB