(183635) Helmi Main-belt Asteroid
Discovered on 24 October 2003 by Sloan Digital Sky Survey at Apache Point.
Amina Helmi (b. 1970) is an Argentinian-Dutch astronomer and a contributor to the Sloan Digital Sky Survey. She is best known for the discovery of stellar streams in the nearby Galactic halo and for her dynamical modeling work of the Galaxy and nearby satellites.Naming citation (WGSBN Bull. 5, #21, 6), IAU / Minor Planet Center, via NASA/JPL
Where Helmi is today
Seen from above the solar system on 2026-10-14: Helmi is 2.67 au from the Sun and 2.97 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 183635 |
| Provisional designation | 2003 UF413 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 3.04 hours |
| Absolute magnitude (H) | 16.52 |
| Orbital period | 3.60 years |
| Semi-major axis | 2.35 au |
| Perihelion – aphelion | 1.88 – 2.82 au |
| Eccentricity | 0.199 |
| Inclination | 3.64° |
| Closest distance between its orbit and Earth's (MOID) | 0.867 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.