38083 Rhadamanthus
A trans-Neptunian object about 176 km across, 39.0 AU out and 243.2 years to a lap of the Sun.
Where it is right now
38083 Rhadamanthus is in Virgo, 42.2 AU away, magnitude 23.5.
Computed for 2 August 2026, 17:00 UTC, and recomputed at least hourly. This page is cached, so treat the line above as accurate to the hour rather than to the second. The map shows the live position.
Position from a Kepler propagation of the published elements below, accurate to about an arcminute.
Facts
Every line carries the source it came from.
- Diameter
- 176 kmSource: Published occultation and Herschel/Spitzer radiometry results
- Orbital period
- 243.2 yearsSource: NASA/JPL Small-Body Database
- Distance from the Sun
- 38.961 AU on averageSource: NASA/JPL Small-Body Database
- Orbit shape
- eccentricity 0.156, inclined 12.7 degrees to the eclipticSource: NASA/JPL Small-Body Database
- Class
- Trans-neptunian objectSource: NASA/JPL Small-Body Database
- Discovered
- 1999-Apr-17 by Buie, M., Millis, R.Source: NASA/JPL Small-Body Database
Physical size
- Mean radius
- 88.0 km
- Diameter
- 176 km across
- Absolute magnitude H
- 7.03
Orbit
Elements are heliocentric, referred to the J2000.0 ecliptic.
- Average distance from the Sun
- 38.961 AU (5,828.5 million km)
- Closest and furthest
- 32.873 AU (4,917.7 million km) to 45.049 AU (6,739.2 million km)
- Eccentricity
- 0.1563, noticeably elliptical
- Inclination to the ecliptic
- 12.75 degrees
- Orbital period
- 243 years
- Longitude of ascending node
- 9.98 degrees
- Argument of periapsis
- 80.31 degrees
- Mean anomaly at J2000.0
- 75.12 degrees
Claim this body
$15 once, and it stays yours
A real catalogued body with a real name.
Wave 2 is not open yet, so this body is not for sale today. Wave 1 is.
A claim is a listing on this map. Not an IAU designation. Permanent, with one disclosed exception for dead links: see the terms.
Catalog id rhadamanthus. 3,172 objects on the map, of which 171 are hand-authored with sourced facts.