Our Moon, a waning gibbous very nearly at last quarter, approaches Jupiter in the night sky over London at around 03:00 on 8th September 2012. You can also see a few Jovian moons: Callisto up and right, Europa below and left, and Ganymede also below left but engulfed in the glow of Jupiter. That Jupiter’s moons point along a line towards our Moon shows that our solar system lies roughly in a plane.