(728) Leonisis Main-belt Asteroid
Discovered on 16 February 1912 by J. Palisa at Vienna.
Where Leonisis is today
Seen from above the solar system on 2026-10-14: Leonisis is 2.10 au from the Sun and 2.06 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 728 |
| Provisional designation | A912 DB |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.89 km (#9,099 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.160 |
| Rotation period | 5.58 hours |
| Absolute magnitude (H) | 12.86 |
| Orbital period | 3.38 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 2.06 – 2.45 au |
| Eccentricity | 0.0875 |
| Inclination | 4.26° |
| Closest distance between its orbit and Earth's (MOID) | 1.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by J. Palisa
- (136) Austria
- (137) Meliboea
- (140) Siwa
- (142) Polana
- (143) Adria
- (151) Abundantia
- (153) Hilda
- (155) Scylla
- (156) Xanthippe
- (178) Belisana
- (182) Elsa
- (183) Istria
← (727) Nipponia · (729) Watsonia →