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Showing results for tags 'jellyfish nebula'.
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The latest image from my observatory (OK, it's a shed with sliding roof!) This is IC443, more commonly called the Jellyfish Nebula. It is a supernova remnant, the remains of a star which exploded over 3000 years ago. It has been expanding in space ever since, and is now 70 light years across. Imaged here over several nights in two wavelengths, Hydrogen Alpha (7nm) and Oxygen III. The dominant hydrogen gases show as red, with tastes of Oiii as blue. Total exposure time 9 hours. Skywatcher Esprit 150ED and Atik 11000.
I get a bit of a kick out of dragging as much out of minimal data as possible Took this last night, packed up early though as it was getting icy and treacherous. I think by the time I packed away it was -5c. Anyway this one actually came out better than i expected and i'm pretty pleased so far 55x120s stacked and processed primarily in APP and final touch up in Photoshop. Also used my L pro max filter for this, which no doubt helped.