NGC 2236

Sky at Night Magazine - - THE SKY GUIDE -

NGC 2236, yet an­other open clus­ter, lies ap­prox­i­mately 2° to the west of Collinder 106. A 6-inch scope shows it as a hazy patch with an 11th-mag­ni­tude star at its cen­tre. Up­ping the aper­ture to 8 inches will start to re­solve the patch. The haze rep­re­sents the bulk of the clus­ter, a large col­lec­tion of 13th-mag­ni­tude or fainter stars spread across a cir­cu­lar area roughly 7 ar­cmin­utes across. At 150x mag­ni­fi­ca­tion, the re­gion looks de­cid­edly gran­u­lar, but there’s no ob­vi­ous con­cen­tra­tion to­wards its cen­tre. A 12-inch scope shows the clus­ter to take on the shape of a south­east point­ing tri­an­gle. SEEN IT

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