(20039) Danfalk Main-belt Asteroid
Discovered on 16 November 1992 by Ueda, S., Kaneda, H. at Kushiro.
Daniel (Dan) Falk (b. 1966) is a Canadian author who specializes in science and who co-hosted a podcast called BookLab where science books are reviewed. Falk's books include The Science of Shakespeare, In Search of Time and Universe on a T-Shirt, and articles by him have appeared in Smithsonian, New Scientist, Scientific American and other magazines.Naming citation (WGSBN Bull. 3, #15, 9), IAU / Minor Planet Center, via NASA/JPL
Where Danfalk is today
Seen from above the solar system on 2026-10-14: Danfalk is 2.23 au from the Sun and 1.41 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20039 |
| Provisional designation | 1992 WJ |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.69 |
| Orbital period | 3.78 years |
| Semi-major axis | 2.42 au |
| Perihelion – aphelion | 2.06 – 2.79 au |
| Eccentricity | 0.151 |
| Inclination | 2.56° |
| Closest distance between its orbit and Earth's (MOID) | 1.08 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 16 November 1992
- (5978) Kaminokuni
- (6567) Shigemasa
- (8184) Luderic
- (8531) Mineosaito
- (8693) Matsuki
- (12746) Yumeginga
- (13567) Urabe
- (14449) Myogizinzya
- (21120) Naritaatsushi
- (21121) Andoshoeki
- (22355) Yahabananshozan
- (46588) Murakamimasayuki