(115) Thyra Main-belt Asteroid
Discovered on 6 August 1871 by J. C. Watson at Ann Arbor.
Where Thyra is today
Seen from above the solar system on 2026-10-14: Thyra is 2.01 au from the Sun and 1.89 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 115 |
| Provisional designation | A871 PA |
| Orbit class | Main-belt Asteroid |
| Diameter | 79.8 km (#380 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.275 |
| Rotation period | 7.24 hours |
| Spectral type | S |
| Absolute magnitude (H) | 7.75 |
| Orbital period | 3.67 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.92 – 2.84 au |
| Eccentricity | 0.192 |
| Inclination | 11.6° |
| Closest distance between its orbit and Earth's (MOID) | 0.971 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by J. C. Watson
- (79) Eurynome
- (93) Minerva
- (94) Aurora
- (100) Hekate
- (101) Helena
- (103) Hera
- (104) Klymene
- (105) Artemis
- (106) Dione
- (119) Althaea
- (121) Hermione
- (128) Nemesis
← (114) Kassandra · (116) Sirona →