(12811) Rigonistern Main-belt Asteroid
Discovered on 14 February 1996 by Munari, U., Tombelli, M. at Cima Ekar.
Mario Rigoni Stern (b. 1921), born and living in Asiago, is one of the most influential contemporary Italian writers, famous for his poetry and novels about mountain life and habitat. His work has been translated into more than a dozen languages and has won several national and international awards.Naming citation (WGSBN Bull. 4, #13, 4), IAU / Minor Planet Center, via NASA/JPL
Where Rigonistern is today
Seen from above the solar system on 2026-10-14: Rigonistern is 2.04 au from the Sun and 2.82 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12811 |
| Provisional designation | 1996 CL7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.74 km (#15,774 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.373 |
| Absolute magnitude (H) | 14.94 |
| Orbital period | 3.40 years |
| Semi-major axis | 2.26 au |
| Perihelion – aphelion | 1.92 – 2.60 au |
| Eccentricity | 0.150 |
| Inclination | 9.35° |
| Closest distance between its orbit and Earth's (MOID) | 0.960 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Mario
- (5329) Decaro
- (5346) Benedetti
- (8106) Carpino
- (9680) Molina
- (10423) Dajcic
- (11165) Mariocabrera
- (11454) Mariomelita
- (15825) Capecchi
- (15837) Mariovalori
- (17466) Vargasllosa
- (20195) Mariovinci
- (21510) Chemnitz
All asteroids named after someone called Mario
Also discovered on 14 February 1996
- (7715) Leonidarosino
- (7847) Mattiaorsi
- (7900) Portule
- (9425) Marconcini
- (9426) Aliante
- (9427) Righini
- (9897) Malerba
- (10175) Aenona
- (10176) Gaiavettori
- (12812) Cioni
- (12813) Paolapaolini
- (13174) Timossi