File:The Helix Nebula NGC7293 in H-alpha.jpg

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English: Also known as "The Eye of God" and "The Eye of Sauron", The planetary Nebula NGC7293 shows up clearly in H-Alpha. It's south Declination of -20d50m makes it difficult to image from Europe but it is no problem from Portugal. Imaged with Esprit 100 f5.5 refractor/ QHY16200 CCD camera and 6nm Ha filter. 26x 15 minutes (6.5 hrs), Stacked with APP and processed further with Pixinsight. Image dates :24,25,26 and 27 October 2017.


Inverse image added to enhance the faint outer structures.
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Source Own work
Author Keesscherer

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Date/TimeThumbnailDimensionsUserComment
current12:03, 22 May 2018Thumbnail for version as of 12:03, 22 May 20182,901 × 1,215 (2.39 MB)Keesscherer (talk | contribs)User created page with UploadWizard

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