(4420) Alandreev Main-belt Asteroid
Discovered on 15 August 1936 by G. N. Neujmin at Simeis.
Aleksandr Fedorovich Andreev (b. 1939), vice-president of the Russian Academy of Sciences and director of the P. Kapitsa Institute of Physical Problems in Moscow, is a specialist in the physics of low temperature and condensed matter. He predicted the so-called Andreev reflection effect.Naming citation (20000726/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Alandreev is today
Seen from above the solar system on 2026-10-14: Alandreev is 3.34 au from the Sun and 4.08 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4420 |
| Provisional designation | 1936 PB |
| Orbit class | Main-belt Asteroid |
| Diameter | 16.0 km (#2,885 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0640 |
| Rotation period | 34.8 hours |
| Absolute magnitude (H) | 12.66 |
| Orbital period | 4.38 years |
| Semi-major axis | 2.68 au |
| Perihelion – aphelion | 1.82 – 3.53 au |
| Eccentricity | 0.319 |
| Inclination | 6.93° |
| Closest distance between its orbit and Earth's (MOID) | 0.805 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Aleksandr
- (2112) Ulyanov
- (2208) Pushkin
- (5014) Gorchakov
- (5219) Zemka
- (6075) Zajtsev
- (7269) Alprokhorov
- (7558) Yurlov
- (7910) Aleksola
- (7996) Vedernikov
- (8322) Kononovich
- (8339) Kosovichia
- (9514) Deineka
All asteroids named after someone called Aleksandr
More named asteroids discovered by G. N. Neujmin
- (748) Simeisa
- (751) Faina
- (752) Sulamitis
- (753) Tiflis
- (762) Pulcova
- (768) Struveana
- (769) Tatjana
- (779) Nina
- (780) Armenia
- (781) Kartvelia
- (787) Moskva
- (789) Lena
← (4419) Allancook · (4421) Kayor →