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NGC 1491

This image was taken with a Planewave CDK20 telescope and a FLI Pl 16803 camera on a Paramount MEII mount using Astrodon 3nm narrow band filters. Red is sulfur, green is Ha and blue green is oxygen Oiii. Ha was bined 2:2 and Sii and Oiii were binned 4:4. There were 120, 20 minute exposures for a total of 40 hours of imaging.

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Comment by Greg Spakoski on January 22, 2017 at 6:20am

Another real nice one Michael

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