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Post Info TOPIC: Asteroid (243) Ida I Dactyl


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Asteroid (243) Ida
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(243) Ida / TYC 6810-00664-1 event 

On 2018 May 10, 08:48 UT, the 28 km diameter asteroid (243) Ida will occult the 9.9 mag star TYC 6810-00664-1 in the constellation Ophiuchus for observers along a path across New Zealand.

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RE: Asteroid (243) Ida I Dactyl
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Ida's moon, Dactyl, was discovered on 17 February 1994

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Asteroid (243) Ida
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Asteroid (243) Ida makes its closest approach to the Earth (1.964 AU) on the 18th May, 2013.



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Asteroid (243) Ida I Dactyl
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(243) Ida I Dactyl, was discovered in images taken by the Galileo spacecraft during its flyby in 1993. These images provided the first direct confirmation of an asteroid moon. At the time, it was separated from Ida by a distance of 90 kilometres, moving in a prograde orbit. Dactyl's surface is heavily cratered, like Ida, and consists of similar materials. Its origin is uncertain, but evidence from the flyby suggests that it originated as a fragment of the Koronis parent body.
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