Small moon of Didymos, deliberately struck by NASA’s DART spacecraft in 2022 to test asteroid deflection.
No small telescope will show you this one; it is here to be understood, not spotted.
Dimorphos is roughly thirteen times as long as a school bus.
Dimorphos takes about 11 hours to go once round Didymos.
Tidally locked before DART: it turned once every 11.92 hours, its orbital period then. The crash shortened the orbit, so the two no longer match.
| Mean diameter | 151 m |
|---|---|
| Distance from what it orbits | 1.152 km |
| Once round its orbit | 11.37 hours |
Show Dimorphos in the model
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