(143626) Sevialdo Main-belt Asteroid
Discovered on 25 April 2003 by CINEOS at Campo Imperatore.
Aldo Sevi (1939–2025) was an Italian amateur astronomer who was one of the first members of the Gruppo Astrofili Montelupo. A great astronomy popularizer, he guided young people towards the study of physics and astronomy.Naming citation (WGSBN Bull. 6, #2, 9), IAU / Minor Planet Center, via NASA/JPL
Where Sevialdo is today
Seen from above the solar system on 2026-10-14: Sevialdo is 3.36 au from the Sun and 2.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 143626 |
| Provisional designation | 2003 HU27 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.54 km (#11,553 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0540 |
| Absolute magnitude (H) | 15.72 |
| Orbital period | 5.41 years |
| Semi-major axis | 3.08 au |
| Perihelion – aphelion | 2.74 – 3.43 au |
| Eccentricity | 0.112 |
| Inclination | 4.94° |
| Closest distance between its orbit and Earth's (MOID) | 1.74 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Aldo
- (2189) Zaragoza
- (5368) Vitagliano
- (7516) Kranjc
- (13174) Timossi
- (19528) Delloro
- (91214) Diclemente
- (99388) Londialdo
- (600539) Aldoatiglio
All asteroids named after someone called Aldo
Also discovered on 25 April 2003
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- (114740) Luigitatto
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- (166944) Seton
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- (541983) Matthiaspenselin