Saturday, January 19, 2013

Strange S-shape feature on Jupiter 20130119

Around the L2=70 area in the SSTeb (Lower Right). Also there is GRS Jr near the 3 white ovals. I caught a rare winter steady skies. To me the key has been low surface winds and minimal temperature drops. Despite a mild jet stream these 3x(20s@RGB) sequence came out well!

Tuesday, January 1, 2013

High Resolution Asteroids Ceres and Vesta

My collimation is quite out due to some slag in the optical train that I think I have since fixed.  I was hoping to replicate and beat the previous work I've done on Ceres (

Believe it or not, Ceres is not much smaller in angular size than the Jovian Moons and is shown in my recent 2012 feeble attempts to not have a stellar airy disk.  Vesta shows a bit more oblong / elongation and I'm not 100% convinced it is real as my collimation was out by too much for my taste.  I hope to try again in 2013 with better conditions!

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