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Trumpler 37 and IC 1396
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The bright open cluster Trumpler 37, which is approximately 90' in diameter, is surrounded by the even larger emission nebula IC 1396 (170' x 140'). Both are found in the constellation Cepheus. The bright-rimmed globule extending downward towards the center of the image is often called the Elephant's Trunk Nebula. The image is a total integrated exposure time of 4 hrs 40 min with a modified Canon 40D and a Takahashi Epsilon E-180 f/2.8 astrograph on a Paramount; 28 x 10 min lights; 12 darks; 65 flats; 64 bias; Images graded in Images Plus 5.0; Calibrated, registared, integrated, and processed in PixInsight 1.8 RC7; Final adjustments in Photoshop CS6/CC.
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