Map of the Universe
Didymos
Asteroid · Near-Earth asteroid
About Didymos
On 2026-01-01, the date the map shows, Didymos was 2.27 AU from the Sun; sunlight takes 18.9 minutes to reach it.
It goes round the Sun once every 768.94 days, at an average distance of 1.643 AU.
The map lists it as an asteroid and shows it in the Solar System part of the map, drawn on the plane of Earth’s orbit (the ecliptic).
Its moon Dimorphos was struck by NASA's DART spacecraft in 2022; ESA's Hera mission arrives in late 2026.
Key numbers
| Semi-major axis | 1.643 AU |
|---|---|
| Orbital period | 768.94 days |
| Eccentricity | 0.3832 |
| Inclination | 3.41° |
| Radius | 390 m |
| Distance from the Sun | 2.27 AU |
Where it is
Its place in the universe, from the inside out: Solar System › Orion–Cygnus Arm (Local Arm) › Milky Way › Local Group › Virgo Supercluster › Laniakea Supercluster › Observable universe.
Zoom out to see it in context: Jupiter's orbit, a view about 14 AU across.
From Wikipedia
65803 Didymos is a sub-kilometer asteroid and binary system that is classified as a potentially hazardous asteroid and near-Earth object of the Apollo group. The asteroid was discovered in 1996 by the Spacewatch survey at Kitt Peak, and its small 160-meter minor-planet moon, named Dimorphos, was discovered in 2003.
Excerpt from the Wikipedia article 65803 Didymos, licensed CC BY-SA 4.0.