Dimorphos

(65803) Didymos I Dimorphos (provisional designation S/2003 (65803) 1) is a minor-planet moon of the near-Earth asteroid 65803 Didymos. It has a diameter of 170 metres (560 feet). It has been called a low-density rubble pile. It was discovered in 2003 at the Ondřejov Observatory.

the asteroid 65803 Didymos with it's moon called Dimorphos

Dimorphos was the target of the Double Asteroid Redirection Test (DART), a NASA space mission that crashed with Dimorphos in September 2022 on purpose.^[1]^[2] The European Space Agency mission Hera is planned to arrive at the Didymos system in 2026. It will study the effects of the collision on the moon.

Dimorphos Media

Radar images of Didymos and Dimorphos taken by the Arecibo Observatory in 2003
A trail of dust streams from Dimorphos in this Hubble Space Telescope photo taken about three months after the collision. The asteroid is surrounded by blue dots, which are boulders ranging from 1 to 6.7 metres across that were ejected by the impact.
Dart Impact seen by LICIACube
Animation of DART around Didymos - Impact on Dimorphos DART · Didymos · Dimorphos

References

↑ Paoletta, Rae (26 September 2022). "See DART's final images before it smashed into an asteroid". The Planetary Society. Retrieved 28 September 2022.
↑ Witze, Alexandra (27 September 2022). "Fresh images reveal fireworks when NASA spacecraft plowed into asteroid". Nature. doi:10.1038/d41586-022-03067-y. PMID 36167993. S2CID 252566403. Retrieved 28 September 2022.

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[Planetary26Sep2022-1] Paoletta, Rae (26 September 2022). "See DART's final images before it smashed into an asteroid". The Planetary Society. Retrieved 28 September 2022.

[Nature27Sep2022-2] Witze, Alexandra (27 September 2022). "Fresh images reveal fireworks when NASA spacecraft plowed into asteroid". Nature. doi:10.1038/d41586-022-03067-y. PMID 36167993. S2CID 252566403. Retrieved 28 September 2022.

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