(22001) Philharrington Main-belt Asteroid
Discovered on 7 December 1999 by LINEAR at Socorro.
Philip S. Harrington (b. 1956) is an American amateur astronomer, astronomy author and educator. He is best known as the author of many popular astronomy books, including Touring the Universe through Binoculars, Star Ware, Cosmic Challenge, and Star Watch, and as a contributing editor to Astronomy magazine.Naming citation (WGSBN Bull. 6, #14, 7), IAU / Minor Planet Center, via NASA/JPL
Where Philharrington is today
Seen from above the solar system on 2026-10-14: Philharrington is 3.23 au from the Sun and 3.86 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22001 |
| Provisional designation | 1999 XY41 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.87 km (#5,182 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0720 |
| Rotation period | 9.64 hours |
| Absolute magnitude (H) | 13.79 |
| Orbital period | 5.10 years |
| Semi-major axis | 2.96 au |
| Perihelion – aphelion | 2.68 – 3.25 au |
| Eccentricity | 0.0966 |
| Inclination | 0.551° |
| Closest distance between its orbit and Earth's (MOID) | 1.66 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Philip
- (4448) Phildavis
- (6580) Philbland
- (7220) Philnicholson
- (7277) Klass
- (8338) Ralhan
- (8615) Philipgrahamgood
- (9004) Peekaydee
- (10030) Philkeenan
- (11581) Philipdejager
- (11790) Goode
- (13112) Montmorency
- (15766) Strahlenberg
All asteroids named after someone called Philip
Also discovered on 7 December 1999
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- (13845) Jillburnett
- (13848) Cioffi
- (13849) Dunn
- (13850) Erman
- (13852) Ford
- (13853) Jenniferfritz
- (14225) Alisahamilton
- (14226) Hamura
- (14230) Mariahines
- (14679) Susanreed
- (16118) Therberens