(78) Diana Main-belt Asteroid
Discovered on 15 March 1863 by R. Luther at Dusseldorf.
👶 Diana as a baby name🐶 Diana as a dog name🐱 Diana as a cat name
Where Diana is today
Seen from above the solar system on 2026-10-14: Diana is 3.01 au from the Sun and 2.32 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 78 |
| Provisional designation | A863 EA |
| Orbit class | Main-belt Asteroid |
| Diameter | 121 km (#157 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0706 |
| Rotation period | 7.30 hours |
| Spectral type | C |
| Absolute magnitude (H) | 8.39 |
| Orbital period | 4.25 years |
| Semi-major axis | 2.62 au |
| Perihelion – aphelion | 2.09 – 3.16 au |
| Eccentricity | 0.204 |
| Inclination | 8.68° |
| Closest distance between its orbit and Earth's (MOID) | 1.11 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by R. Luther
- (17) Thetis
- (26) Proserpina
- (28) Bellona
- (35) Leukothea
- (37) Fides
- (47) Aglaja
- (53) Kalypso
- (57) Mnemosyne
- (58) Concordia
- (68) Leto
- (71) Niobe
- (82) Alkmene
← (77) Frigga · (79) Eurynome →