Derby and District Astronomical Society

IC 1396 and the Elephant's Trunk Nebula

Emission and Dark Nebula in Cepheus      RA 21h 39m 06s  Dec +57d 30m 00s

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IC 1396 is a large complex of emission and dark nebulosity in the constellation Cepheus. One of the dark nebulae in the complex has been named the Elephant's Trunk Nebula due to its appearance. Adrian Brown captured this image of The Elephant's Trunk Nebula in IC 1396 in June 2008. To create the image he captured 15 x 20 minute exposures using a Skywatcher 80ED refractor, William Optics 0.8x focal reducer, Atik ATK16HR ccd camera and an Astronomik 6nm Hydrogen-Alpha filter. The raw data was calibrated (bias and flat-field) and stacked via Maxim DL. The stacked image was then processed in Photoshop using Levels and Curves. A light Gaussian Blur filter was used to smooth noise in the dimmest parts of the image.