Pluto orbits beyond the orbit of Neptune (usually). It is much smaller than any of the official planets and now classified as a "dwarf planet". Pluto is smaller than seven of the solar system's moons (the Moon, Io, Europa, Ganymede, Callisto, Titan and Triton).
orbit: 5,913,520,000 km (39.5 AU) from the Sun (average)
diameter: 2274 km
mass: 1.27e22 kg
My best to date Pluto.
Date and Time: 08-9-2006 1008 UT
Telescope: Celestron cpc800 series
Capture Software: K3Tools / gain=90 Shutter=1/30 - 1 avi @ 12 FPS
Processing Software: Registax / Photoshop