(213771) Johndee Main-belt Asteroid
Discovered on 27 February 2003 by KLENOT at Klet.
John Dee (1527-1608), English mathematician, astronomer, navigation expert, the author of Mathematical Preface to Euclid's Elements, was also interested in alchemy and hermetic philosophy. Dee served as a consultant to Queen Elizabeth I and from 1586 to 1589 he worked at the court of the Rosenbergs in South Bohemia.Naming citation (20111210/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Johndee is today
Seen from above the solar system on 2026-10-14: Johndee is 3.11 au from the Sun and 3.89 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 213771 |
| Provisional designation | 2003 DE13 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.12 |
| Orbital period | 5.66 years |
| Semi-major axis | 3.18 au |
| Perihelion – aphelion | 2.72 – 3.63 au |
| Eccentricity | 0.143 |
| Inclination | 1.54° |
| Closest distance between its orbit and Earth's (MOID) | 1.73 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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