Celestial hemisphere:  Southern  ·  Constellation: Aquarius (Aqr)  ·  Contains:  Helix Nebula  ·  NGC 7293  ·  PK036-57.1
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Deep Helix, Roland Christen
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Deep Helix

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Deep Helix, Roland Christen
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Deep Helix

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Description

Image was taken at the AP remote observatory at Las Campanas Observatory in Chile. Images were taken by Howard Hedlund and processed by Dave Jurasevich using CCDStack and Photoshop.

Bicolor image (Ha-OIII) of the Helix Nebula with data Howard took in 2014.  25 hour total exposure, stretched to show the outer envelope. There are several prominent bow-shocks that occur when the expanding gasses collide with the interstellar medium.

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Deep Helix, Roland Christen