(8261) Ceciliejulie Main-belt Asteroid
Discovered on 11 September 1985 by Copenhagen Observatory at Brorfelde.
Cecilie Ida Cetti Hansen and Julie Liv Cetti Hansen are the twin daughters (b. 1992) of Danish astrophysicist Anja C. Andersen.Naming citation (20070402/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ceciliejulie is today
Seen from above the solar system on 2026-10-14: Ceciliejulie is 2.85 au from the Sun and 3.70 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8261 |
| Provisional designation | 1985 RD |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.3 km (#4,440 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0880 |
| Rotation period | 14.0 hours |
| Absolute magnitude (H) | 13.44 |
| Orbital period | 5.28 years |
| Semi-major axis | 3.03 au |
| Perihelion – aphelion | 2.47 – 3.59 au |
| Eccentricity | 0.184 |
| Inclination | 1.38° |
| Closest distance between its orbit and Earth's (MOID) | 1.46 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.