Monday, May 12, 2014

Saturn at opposition (almost), and Mars

Saturn reached opposition on May 10th, 18:15 UTC. Unfortunately the weather was cloudy at that time. This image was taken the following evening, around 27 hours after opposition. Around opposition the rings brighten quite suddenly and quite a lot; this is because the rings are illuminated from directly behind the observer. This effect is often called the Seeliger effect

From the same evening, my only Mars image so far this year. Pretty unimpressive...

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