Monday 29 November 2021

Isaac Roberts, Nebula and a Cooke


In Monthly Notices, LXIII, 1, Dr Isaac Roberts contributes a most valuable and startling paper on the subject of 52 regions observed as nebulous by Sir William Herschel. These regions were photographed using both the 20 inch reflector and 5 inch Cooke & Sons refractor. The surprising result is that in only 4 out of the 52 regions is any nebulosity found.

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