Kevin Quin will talk about how to use PixInsight on Sunday morning at 9:30. To get the most from the tutorial, he strongly recommends that you follow along on your own laptop, processing the image as we go. The image Kevin will be working on can be downloaded from Dropbox at this link:
That zip file contains four images in PixInsight’s XISF format. They’re luminance, red, green and blue images of NGC 3184, a large face-on spiral galaxy in Ursa Major. Kevin will demonstrate how he used Pixinsight to create those stacked images, and then we’ll work through the remaining processing steps together. If you don’t already have a copy of PixInsight, you should download a 45-day trial copy from this link:
Download the copy soon, as it might take a day or two for the Pixinsight folks to send you the code you’ll need. If you mention that you’re requesting a trial copy to follow along in a workshop, that may get you a faster response.