243 Ida - Moon

Moon

A small satellite named Dactyl orbits Ida. Dactyl, officially (243) Ida I Dactyl (/ˈdæktɨl/ DAK-til) 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 (56 mi), moving in a prograde orbit. Dactyl 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.

Read more about this topic:  243 Ida

Famous quotes containing the word moon:

    The moon is a sow
    and grunts in my throat
    Her great shining shines through me
    Denise Levertov (b. 1923)

    I’ve tried the new moon tilted in the air
    Above a hazy tree-and-farmhouse cluster
    As you might try a jewel in your hair.
    Robert Frost (1874–1963)

    Like the moon her kindness is.
    If kindness I may call
    What has no comprehension in’t,
    But is the same for all
    As though my sorrow were a scene
    Upon a painted wall.
    William Butler Yeats (1865–1939)