Posted by BC on September 14th, 2009
Cabeus A is the crater on Moon, selected as the site for a lunar impact on 09 Oct 2009 at 7:35 am EDT. The goal for the impact is to provide more information about water ice that lays in crater shadows.
LCROSS satellite will send the spent Centaur rocket into the crater to eject a plume of material. Then the orbiting LCROSS satellite will pass through the debris plume to examine the material, and scientists hope to find water ice.
Cabeus A is in the southern polar region. It was selected for its prime location that is easily visible from Earth-based telescopes. When the impact occurs a plume of debris will extend above the lunar surface. The plume should be visible in amateur telescopes, and NASA has provided some observing tips for anyone who wants to observe the plume. You can find more information on the Cabeus A impact site.