Friday 18 April 2014

Mars

This must have been the 4th Tuesday in a row for me to get over to the Observatory at Great Ellingham. A great opportunity was taken with good seeing I set about to image Mars. I was not happy with the images taken the previous week, Seeing was very poor and @f20 offered no image stability. So gave it up as a bad job. This Tuesday gone was however a surprising and welcome change. Still low on the horizon at the point of capture. Details teased and flashed with clarity on the screen. Registax processing and some work in Photoshop has revealed a pleasing result. Syrtis Major the largest dark feature demonstrates perfectly the dichotomy of the region as the vast expanse of Arabia Terra extends all the way to the Northern polar cap. Terra Meridiani sweeps across the bottom of the image and out of shot, as Hellas basin also appears bright . Overall I am happy with this image. Visually you can see why astronomers like Giovanni Schiaparelli back in 1877 thought there were canals on the surface. Optical illusions  and the seasonal changes gave this impression of a changing living surface. It was only the Mariner probes in the 60's and 70's that finally dispelled the myths and legends of little green men from Mars.

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California Nebula

  NGC1499 The California Nebula. Discovered in 1889 The California Nebula is an emission nebula in the constellation of Perseus, currently v...