Introduction Making astronomical mosaics is a difficult task.  There can be intensity and gradient differences that make the seams visible.  Even when the…

Table of Contents Introduction Synthetic Flat Creation with Subframes Synthetic Flat from a Single Image Introduction There are many instances where calibration frames…

This came from another question posted on Cloudy Nights.  It’s something I’ve done with my prints and I’ve found this method easy and…

Removing the stars from your image can be done for artistic purposes or to separate the nebulosity from the star field so it…

Overview PixInsight has some fantastic tools and there are some nice wrappers around them, like the BatchPreprocessing script, that make them easier to…

This is another tutorial spurred on by a Cloudy Nights discussion.  I posted this same tutorial in pieces on that thread but decided…

This is my tutorial on removing star halo’s caused by internal reflections using PixInsight.  This came about from a forum post on CloudyNights…