(1403) Idelsonia Main-belt Asteroid
Discovered on 13 August 1936 by G. N. Neujmin at Simeis.
Where Idelsonia is today
Seen from above the solar system on 2026-10-14: Idelsonia is 2.10 au from the Sun and 1.23 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1403 |
| Provisional designation | 1936 QA |
| Orbit class | Main-belt Asteroid |
| Diameter | 26.5 km (#1,576 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0720 |
| Rotation period | 5.46 hours |
| Spectral type | Cgh |
| Absolute magnitude (H) | 11.56 |
| Orbital period | 4.48 years |
| Semi-major axis | 2.72 au |
| Perihelion – aphelion | 1.92 – 3.52 au |
| Eccentricity | 0.294 |
| Inclination | 10.2° |
| Closest distance between its orbit and Earth's (MOID) | 0.913 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 13 August 1936
More named asteroids discovered by G. N. Neujmin
- (748) Simeisa
- (751) Faina
- (752) Sulamitis
- (753) Tiflis
- (762) Pulcova
- (768) Struveana
- (769) Tatjana
- (779) Nina
- (780) Armenia
- (781) Kartvelia
- (787) Moskva
- (789) Lena
← (1402) Eri · (1404) Ajax →