MarkS Posted March 24, 2015 Report Share Posted March 24, 2015 This one was shot with Ha SII OIII Astrodon 5nm filter set. The colour assignment is the Hubble Colour Palette - SII to red; Ha to green; OIII to blue. ASA10N at f/3.6; DDM60; STT8300M. Image processed in Pixinsight; finished in Photoshop. NGC 3603 is the smaller blue nebula on the left. It is about 20,000 ly distant and contains two very massive eclipsing binary stars of 120 and 90 solar masses. NGC 3567 on the right of the image is much closer to us: about 6000 ly. It is about 50 ly radius and has quite strong SII emission. Link to comment Share on other sites More sharing options...
lukepower Posted March 25, 2015 Report Share Posted March 25, 2015 Wow... amazing! Link to comment Share on other sites More sharing options...
rbrecher Posted March 30, 2015 Report Share Posted March 30, 2015 Very Nice Mark! clear skies, Ron Link to comment Share on other sites More sharing options...
MarkS Posted March 31, 2015 Author Report Share Posted March 31, 2015 Luke and Ron, Thanks for the comments - I don't know why I didn't discover this gem of a target sooner. Mark Link to comment Share on other sites More sharing options...
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