(11581) Philipdejager Main-belt Asteroid
Discovered on 10 August 1994 by E. W. Elst at La Silla.
Philip de Jager (b. 1969) is a Belgian percussionist. A brilliant student at the Antwerp Conservatory, he now performs with several Belgian orchestras. He has also performed for the musicals Les Misérables and The Phantom of the Opera.Naming citation (20000726/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Philipdejager is today
Seen from above the solar system on 2026-10-14: Philipdejager is 3.07 au from the Sun and 2.61 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11581 |
| Provisional designation | 1994 PK9 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.04 km (#8,863 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.122 |
| Absolute magnitude (H) | 13.99 |
| Orbital period | 5.13 years |
| Semi-major axis | 2.98 au |
| Perihelion – aphelion | 2.72 – 3.23 au |
| Eccentricity | 0.0868 |
| Inclination | 10.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.71 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
- (11790) Goode
- (13112) Montmorency
- (15766) Strahlenberg
- (17797) Philfrankel
All asteroids named after someone called Philip
Also discovered on 10 August 1994
- (6836) Paranal
- (7661) Reincken
- (7960) Condorcet
- (8205) Van Dijck
- (8890) Montaigne
- (9079) Gesner
- (9205) Eddywally
- (9392) Cavaillon
- (9393) Apta
- (9394) Manosque
- (9395) Saint Michel
- (9638) Fuchs