(1223) Neckar Main-belt Asteroid
Discovered on 6 October 1931 by K. Reinmuth at Heidelberg.
Where Neckar is today
Seen from above the solar system on 2026-10-14: Neckar is 3.03 au from the Sun and 4.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1223 |
| Provisional designation | 1931 TG |
| Orbit class | Main-belt Asteroid |
| Diameter | 22.8 km (#1,873 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.170 |
| Rotation period | 7.81 hours |
| Spectral type | S |
| Absolute magnitude (H) | 10.51 |
| Orbital period | 4.86 years |
| Semi-major axis | 2.87 au |
| Perihelion – aphelion | 2.69 – 3.05 au |
| Eccentricity | 0.0622 |
| Inclination | 2.54° |
| Closest distance between its orbit and Earth's (MOID) | 1.70 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 6 October 1931
- (1204) Renzia
- (1205) Ebella
- (1782) Schneller
- (1941) Wild
- (3379) Oishi
- (3555) Miyasaka
- (3775) Ellenbeth
- (4755) Nicky
More named asteroids discovered by K. Reinmuth
- (796) Sarita
- (799) Gudula
- (864) Aase
- (909) Ulla
- (910) Anneliese
- (911) Agamemnon
- (913) Otila
- (918) Itha
- (920) Rogeria
- (921) Jovita
- (922) Schlutia
- (923) Herluga
← (1222) Tina · (1224) Fantasia →