(117997) Irazu Inner Main-belt Asteroid
Discovered on 29 September 1973 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
This Hungaria minor planet is named for the 3432-m active volcano Irazú in Costa Rica.Naming citation (WGSBN Bull. 2, #11, 6), IAU / Minor Planet Center, via NASA/JPL
Where Irazu is today
Seen from above the solar system on 2026-10-14: Irazu is 2.09 au from the Sun and 2.17 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 117997 |
| Provisional designation | 1090 T-2 |
| Orbit class | Inner Main-belt Asteroid |
| Absolute magnitude (H) | 16.53 |
| Orbital period | 2.68 years |
| Semi-major axis | 1.93 au |
| Perihelion – aphelion | 1.71 – 2.15 au |
| Eccentricity | 0.113 |
| Inclination | 19.3° |
| Closest distance between its orbit and Earth's (MOID) | 0.809 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 29 September 1973
- (2049) Grietje
- (4357) Korinthos
- (4549) Burkhardt
- (4721) Atahualpa
- (4752) Myron
- (4876) Strabo
- (4978) Seitz
- (5151) Weerstra
- (5197) Rottmann
- (5243) Clasien
- (5244) Amphilochos
- (5266) Rauch