The Moons of Jupiter
I came home from my dad's last night to find the sky really clear, and the weather still quite warm. I armed myself with my 150-500mm zoom, a 1.4x teleconverter, and my trusty Benbo tripod, and took a few snaps from just outside the front door. I am particularly pleased with this one of the planet Jupiter, showing three of its four moons. From left to right, the picture shows Ganymede, Callisto, Jupiter itself, and Europa. Io, the fourth moon, is behind the main planet. I'm not some sort of psychic when it comes to knowing one moon from another. The good people at www.skyandtelescope.com have a handy little calculator that shows the relative position of the moons at any given time. 
17 Day Old, Waning Gibbous Moon
According to my computer, the moon was 403516km from me and my camera. I'd check it myself, but petrol is expensive these days.
