(40023) ANPCEN Main-belt Asteroid
Discovered on 25 April 1998 by E. W. Elst at La Silla.
The ANPCEN (National Association for the Protection of the Sky and Nightly Environments in France) was established in March 1999. Presently 581 communities have joined the association. Recently Strasbourg, a city of 300,000 inhabitants, has signed the association's charter.Naming citation (MPC batch dated 2018-05-29), IAU / Minor Planet Center, via NASA/JPL
Where ANPCEN is today
Seen from above the solar system on 2026-10-14: ANPCEN is 2.22 au from the Sun and 3.19 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 40023 |
| Provisional designation | 1998 HU148 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.96 km (#15,313 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.291 |
| Absolute magnitude (H) | 14.89 |
| Orbital period | 4.07 years |
| Semi-major axis | 2.55 au |
| Perihelion – aphelion | 1.88 – 3.22 au |
| Eccentricity | 0.262 |
| Inclination | 3.07° |
| Closest distance between its orbit and Earth's (MOID) | 0.868 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 25 April 1998
- (9130) Galois
- (9246) Niemeyer
- (11711) Urquiza
- (11712) Kemcook
- (11713) Stubbs
- (12095) Pinel
- (12100) Amiens
- (12524) Conscience
- (12526) de Coninck
- (13238) Lambeaux
- (16946) Farnham
- (17836) Canup