Physical Size
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Dimorphos
25143 Itokawa
Rubble-pile asteroid
Dimorphos
A small asteroid moon whose orbit was deliberately changed by DART.
Dimorphos is the small moonlet of asteroid Didymos and the target struck by NASA’s DART spacecraft. DART shortened its orbit by roughly 33 minutes, making Dimorphos the first celestial body whose motion humans deliberately changed.
- maximum extent
- 177 m
- Mass
- ~4 million metric tons
- Age
- ~4.5 billion years
- Orbits
- Didymos system
- Imaged by
- DART · 2022
Image: Eydeet, using DART's satellite imagery by NASA · Public domain · Wikimedia Commons