(99915) Henarejos Mars-crossing Asteroid
Discovered on 2 October 1997 by ODAS at Caussols.
Philippe Henarejos (b. 1967) is a French science journalist and Editor-in-Chief of the French astronomy magazine Ciel et Espace. He is the author of 15 books, mainly celestial handbooks, popularization books, and the book Ils ont marché sur la Lune, the story of the Apollo missions.Naming citation (WGSBN Bull. 2, #11, 6), IAU / Minor Planet Center, via NASA/JPL
Where Henarejos is today
Seen from above the solar system on 2026-10-14: Henarejos is 3.71 au from the Sun and 4.70 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 99915 |
| Provisional designation | 1997 TR6 |
| Orbit class | Mars-crossing Asteroid |
| Absolute magnitude (H) | 15.05 |
| Orbital period | 4.42 years |
| Semi-major axis | 2.69 au |
| Perihelion – aphelion | 1.60 – 3.78 au |
| Eccentricity | 0.405 |
| Inclination | 3.03° |
| Closest distance between its orbit and Earth's (MOID) | 0.600 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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