(249) Ilse Main-belt Asteroid
Discovered on 16 August 1885 by C. H. F. Peters at Clinton.
Where Ilse is today
Seen from above the solar system on 2026-10-14: Ilse is 2.83 au from the Sun and 3.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 249 |
| Provisional designation | A885 QA |
| Orbit class | Main-belt Asteroid |
| Diameter | 34.8 km (#1,158 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0428 |
| Rotation period | 84.9 hours |
| Absolute magnitude (H) | 11.4 |
| Orbital period | 3.67 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.86 – 2.90 au |
| Eccentricity | 0.218 |
| Inclination | 9.63° |
| Closest distance between its orbit and Earth's (MOID) | 0.871 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by C. H. F. Peters
- (72) Feronia
- (75) Eurydike
- (77) Frigga
- (85) Io
- (88) Thisbe
- (92) Undina
- (98) Ianthe
- (102) Miriam
- (109) Felicitas
- (111) Ate
- (112) Iphigenia
- (114) Kassandra
← (248) Lameia · (250) Bettina →