(5802) Casteldelpiano Main-belt Asteroid

Discovered on 27 April 1984 by V. Zappala at La Silla.

Castel del Piano is an ancient castle near Carrara, Tuscany, Italy, that has been recently restored by two great lovers of astronomy and friends of the discoverer, Sabina Ruffaldi and Andrea Ghigliazza.Naming citation (20120406/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Casteldelpiano is today

Seen from above the solar system on 2026-10-14: Casteldelpiano is 2.62 au from the Sun and 2.09 au from Earth. Computed from JPL's orbital elements.

Facts

Number	5802
Provisional designation	1984 HL1
Orbit class	Main-belt Asteroid
Diameter	4.89 km (#10,827 largest of 17,440 named asteroids with a measured size)
Albedo	0.378
Rotation period	2.97 hours
Absolute magnitude (H)	13.39
Orbital period	3.43 years
Semi-major axis	2.27 au
Perihelion – aphelion	1.92 – 2.62 au
Eccentricity	0.155
Inclination	2.40°
Closest distance between its orbit and Earth's (MOID)	0.934 au

Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.

Also named after someone called Castel

• (90718) Castel Gandolfo
• (283057) Casteldipiazza

All asteroids named after someone called Castel

Also discovered on 27 April 1984

• (3625) Fracastoro
• (9010) Candelo

More named asteroids discovered by V. Zappala

• (7459) Gilbertofranco
• (9009) Tirso
• (9010) Candelo
• (10038) Tanaro
• (11476) Stefanosimoni

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