(20484) Janetsong Main-belt Asteroid
Discovered on 14 July 1999 by LINEAR at Socorro.
Janet Song (b. 1991) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochemistry, medicine, health, and microbiology project. She attends the Arcola Intermediate School, Norristown, Pennsylvania.Naming citation (20041028/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Janetsong is today
Seen from above the solar system on 2026-10-14: Janetsong is 2.56 au from the Sun and 3.47 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20484 |
| Provisional designation | 1999 NL41 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.22 km (#12,227 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.361 |
| Rotation period | 4.36 hours |
| Absolute magnitude (H) | 13.93 |
| Orbital period | 4.01 years |
| Semi-major axis | 2.52 au |
| Perihelion – aphelion | 2.28 – 2.76 au |
| Eccentricity | 0.0954 |
| Inclination | 7.13° |
| Closest distance between its orbit and Earth's (MOID) | 1.28 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Janet
- (8808) Luhmann
- (11695) Mattei
- (14129) DiBucci
- (20568) Migaki
- (20593) Freilich
- (22843) Stverak
- (23995) Oechsle
- (33502) Janetwaldeck
- (48628) Janetfender
- (55561) Madenberg
- (306257) Janethunten
All asteroids named after someone called Janet
Also discovered on 14 July 1999
- (11751) Davidcarroll
- (12120) Rebeccagrella
- (15502) Hypeirochus
- (16062) Buncher
- (17169) Tatarinov
- (17170) Vsevustinov
- (18823) Zachozer
- (18824) Graves
- (18825) Alicechai
- (18826) Leifer
- (18830) Pothier
- (19589) Kirkland