2025 SC79
Second object orbiting the Sun entirely within Venus's orbit
From Wikipedia, the free encyclopedia
2025 SC79 is a near-Earth asteroid discovered by the Cerro Tololo-DECam on 27 September 2025.[3] With an orbital period of 128 days, 2025 SC79 has the third-shortest period of all known asteroids as of 2025[update], after 2021 PH27 and 2025 GN1 (which orbit the Sun in 113 days).[2] It belongs to the Atira group of asteroids which reside inside the orbit of Earth. 2025 SC79 is estimated to be 700 metres (2,300 ft) in diameter.[2]
Discoverydate27 September 2025
v27sep5[1]
| Discovery | |
|---|---|
| Discovered by | Scott S. Sheppard |
| Discovery site | Cerro Tololo Inter-American Observatory |
| Discovery date | 27 September 2025 |
| Designations | |
| v27sep5[1] | |
| NEO • Atira asteroid | |
| Orbital characteristics | |
| Uncertainty parameter 8 | |
| 0.4957697 AU | |
| Eccentricity | 0.4499108 |
| 128 days (0.35 years) | |
| 342.29421° | |
| 2.82347600°/day | |
| Inclination | 16.78228° |
| Earth MOID | 0.29249 |
| Mercury MOID | 0.08312 |
| Venus MOID | 0.0146 |
| Physical characteristics | |
| 700 m[2] | |
| 18.83 | |
