Jupiter’s moons to vanish from view

An unusual celestial vanishing act will take place the night of Sept. 2 when all four of Jupiter's largest moons will be hidden from our view.

The event will occur on a night when Jupiter happens to be positioned very close to Earth's moon in the southeastern sky. The two objects, though very far apart in space, will be about 5 degrees from each other in our sky (your fist on an outstretched arm covers about 10 degrees of sky). This pairing makes Jupiter, which outshines all stars and so is easy to spot, even easier for anyone to locate. link..