(18708) Danielappel Main-belt Asteroid
Discovered on 21 April 1998 by LINEAR at Socorro.
Daniel Clayton Appel (b. 1987) was awarded third place in the 2003 Intel International Science and Engineering Fair for his chemistry project. He attends the Eldorado High School, Albuquerque, New Mexico, U.S.A.Naming citation (20040830/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Danielappel is today
Seen from above the solar system on 2026-10-14: Danielappel is 3.22 au from the Sun and 2.48 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18708 |
| Provisional designation | 1998 HT97 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.34 km (#9,980 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.129 |
| Absolute magnitude (H) | 14.13 |
| Orbital period | 5.31 years |
| Semi-major axis | 3.04 au |
| Perihelion – aphelion | 2.86 – 3.23 au |
| Eccentricity | 0.0602 |
| Inclination | 7.30° |
| Closest distance between its orbit and Earth's (MOID) | 1.87 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Daniel
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