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Jupiter was at "opposition" yesterday, which means that it's still almost at opposition today. "Opposition" means that it's on exactly the opposite side of the Earth from the Sun. The picture to the right shows diagrammatically the layout of the Solar System when Jupiter is at opposition. This means a few things. First, we're closer to Jupiter than we are at any other time. This means that Jupiter is both brighter and, if you have a telescope, a bit bigger than it usually is. Second, it means that Jupiter is as high in the sky as it will get right at local midnight (which is generally…