(22645) Rotblat Main-belt Asteroid
Discovered on 26 July 1998 by LONEOS at Anderson Mesa.
Joseph Rotblat (1908-2005) was a Nobel Peace Prize laureate in 1995 for his efforts toward nuclear disarmament. A signatory to the 1955 Russell-Einstein manifesto, he was the guiding spirit of the Pugwash Conferences on Science and World Affairs and helped prevent the use of nuclear weapons during the Cold War.Naming citation (20091202/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Rotblat is today
Seen from above the solar system on 2026-10-14: Rotblat is 2.40 au from the Sun and 3.28 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22645 |
| Provisional designation | 1998 OT6 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 6.09 hours |
| Absolute magnitude (H) | 14.93 |
| Orbital period | 3.68 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.90 – 2.86 au |
| Eccentricity | 0.201 |
| Inclination | 1.91° |
| Closest distance between its orbit and Earth's (MOID) | 0.887 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Joseph
- (2157) Ashbrook
- (4225) Hobart
- (5034) Joeharrington
- (5577) Priestley
- (5883) Josephblack
- (6540) Stepling
- (6743) Liu
- (7656) Joemontani
- (8023) Josephwalker
- (8255) Masiero
- (8661) Ratzinger
- (8794) Joepatterson
All asteroids named after someone called Joseph
Also discovered on 26 July 1998
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- (13254) Kekule
- (13256) Marne
- (13703) Romero
- (20404) Javiersuarez
- (22647) Levi-Strauss