(1577) Reiss Main-belt Asteroid
Discovered on 19 January 1949 by L. Boyer at Algiers.
Where Reiss is today
Seen from above the solar system on 2026-10-14: Reiss is 2.60 au from the Sun and 3.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1577 |
| Provisional designation | 1949 BA |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.62 km (#9,552 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.322 |
| Rotation period | 4.50 hours |
| Absolute magnitude (H) | 12.95 |
| Orbital period | 3.33 years |
| Semi-major axis | 2.23 au |
| Perihelion – aphelion | 1.86 – 2.60 au |
| Eccentricity | 0.167 |
| Inclination | 4.36° |
| Closest distance between its orbit and Earth's (MOID) | 0.868 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.