(20005) Zagarella Main-belt Asteroid
Discovered on 8 April 1991 by E. W. Elst at La Silla.
Roberto Zagarella (b. 1953) is an Italian amateur astronomer who has participated in the PRISMA meteor network since its inception. The aim of PRISMA is the systematic observation of fireballs to determine the orbits of the progenitor bodies and the areas where meteorites may have fallen.Naming citation (WGSBN Bull. 3, #10, 7), IAU / Minor Planet Center, via NASA/JPL
Where Zagarella is today
Seen from above the solar system on 2026-10-14: Zagarella is 2.42 au from the Sun and 3.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20005 |
| Provisional designation | 1991 GL7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.26 km (#16,672 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.455 |
| Absolute magnitude (H) | 15.1 |
| Orbital period | 3.54 years |
| Semi-major axis | 2.32 au |
| Perihelion – aphelion | 2.22 – 2.42 au |
| Eccentricity | 0.0443 |
| Inclination | 3.95° |
| Closest distance between its orbit and Earth's (MOID) | 1.23 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Roberto
- (4881) Robmackintosh
- (7323) Robersomma
- (7794) Sanvito
- (8742) Bonazzoli
- (9478) Caldeyro
- (10579) Diluca
- (10590) Ragazzoni
- (12470) Pinotti
- (14919) Robertohaver
- (14964) Robertobacci
- (16996) Dahir
- (19224) Orosei
All asteroids named after someone called Roberto
Also discovered on 8 April 1991
- (6487) Tonyspear
- (6647) Josse
- (6912) Grimm
- (7126) Cureau
- (7179) Gassendi
- (8277) Machu-Picchu
- (8369) Miyata
- (8665) Daun-Eifel
- (8852) Buxus
- (9180) Samsagan
- (9339) Kimnovak
- (9592) Clairaut