(20595) Ryanwisnoski Main-belt Asteroid
Discovered on 9 September 1999 by LINEAR at Socorro.
Ryan Wisnoski (b. 1986) was awarded second place in the 2004 Intel International Science and Engineering Fair for his biochemistry project. He attends the Crescent City High School, Crescent City, Florida, U.S.A.Naming citation (20041226/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ryanwisnoski is today
Seen from above the solar system on 2026-10-14: Ryanwisnoski is 2.39 au from the Sun and 2.17 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20595 |
| Provisional designation | 1999 RT188 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.4 |
| Orbital period | 3.44 years |
| Semi-major axis | 2.28 au |
| Perihelion – aphelion | 2.09 – 2.47 au |
| Eccentricity | 0.0840 |
| Inclination | 3.43° |
| Closest distance between its orbit and Earth's (MOID) | 1.09 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ryan
- (12864) Ryandrake
- (15155) Ahn
- (16175) Rypatterson
- (17127) Ryanwestcott
- (19597) Ryanlee
- (20165) Zeigler
- (20794) Ryanolson
- (21427) Ryanharrison
- (25645) Alexanderyan
- (28593) Ryanhamilton
- (28894) Ryanchung
- (29631) Ryankenny
All asteroids named after someone called Ryan
Also discovered on 9 September 1999
- (12127) Mamiya
- (12130) Mousa
- (12589) Davidanand
- (12590) Ballantine
- (12591) Bergey
- (12592) Brianchen
- (12593) Shashlov
- (12594) Sidorclare
- (12595) Amandashaw
- (12596) Shukla
- (12597) Williamdaniel
- (12598) Sierra