Thor's Helmet nebula

A Seestar S50 was used to capture 33 minutes worth of 10s RAW exposures of Thor's Helmet nebula NGC 2359 over a period of about an hour. The data were debayered and stacked in both PixInsight and Siril. This was done because PixInsight only stacked about 50% of the subs. With Siril, all of the subs were able to be stacked. The resulting stacked images were processed in GraXpert, SetiAstro's Cosmic Clarity suite and Gimp2.10 with Starnet++. The resulting images were combined in Picture Window Pro 2.5.

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The unprocessed jpg saved to the controlling tablet computer straight off the Seestar S50

The cropped and reoriented final image of Thor's Helmet

Steve Wainwright and Nicola Mackin