Jupiters "Great Red Spot" can be seen in this image taken from my backyard on Sept 20, 2012. It is not as red or as prominent as it has been at times in the past but it is still an interesting site. The persistent anticyclonic storm that is responsible has been seen from the time that telescopes were capable of spotting it.
Details
2012-09-20 at 3:07 AM PDT from Victoria BC
Conditions - hazy and moist, calm, 10 deg C with no wind.
Equipment - Canon T3i with 20mm eyepiece projection on 105mm F/7 WO refractor giving an effective focal ratio of f/36. HEQ5 mount.
Exposure - used 1279 of 1578 frames taken at 1/160s and ISO 1600.
Processing in Registax, Images Plus and Photoshop.