Cometary globule in Scorpius


Image credit and information APOD. Cometary globules, where dust grains are swept back and made to glow by ultraviolet radiation from nearby hot stars, were only recognised as a phenomenon in 1976. This image represents several hours exposure time with a 14.5 inch telescope, and can be compared to an older view from the Anglo-Australian Observatory, which I learn today has, along with everyone associated with Siding Spring, survived the bush fires. The exception is the observatory Lodge.


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