Our guides are designed to be easy-to-follow tutorials with images and instructions. Learn how to download and process images from NASA step-by-step and achieve a result that you can be proud of! Processing guides can be accessed with the Processing Bundle or purchased individually. Note: Lifetime access and updates are included when buying the guide separately, but can become costly with multiple guides.

  • Lifetime access with free updates

  • Compatible across platforms (Windows, Mac, Mobile...)

  • Videos with commentary | Written workflow for each step

  • Downloadable videos for offline learning

Step 1 - Download

Professional Data from NASA

Downloading data from the Hubble or the James Webb Space Telescope can be confusing at first, but we'll teach you how to properly do it! Follow along using not just text but also videos with commentary to access the online portal where you'll download the data of your choice. Learn how to find any type of target, and which files to download onto your computer.
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Galaxy Processing Guide screenshot

Step 2 - Process

Professional Data from NASA

After importing the data into PixInsight, learn how to combine each channel to obtain a color palette you like. Understand what the filters on the space telescopes are and how to naturally combine the monochrome channels into one color image. Then, process the data until you are satisfied! Thanks to its easy-to-follow structure, you will be able to open this guide on the side every time you work on a new image until you have absorbed all the steps and techniques naturally.
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Galaxy Processing Guide screenshot

What People Say

Edward Mizzi

5 star rating

“I was looking for a resource that would guide me, step by step and this workflow does just that, Thanks to Galactic Hunter for developing these resources and offering them at reasonable prices.”

“I was looking for a resource that would guide me, step by step and this workflow does just that, Thanks to Galactic Hunter for developing these resources and offering them at reasonable prices.”

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Jason Knight

5 star rating

“Good job”

“Good job”

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Aerial Drone Master

5 star rating

“The course is great for beginners, everything is explained in easy to understand language with plenty of examples Tom Toka ( Aerial Drone Master )”

“The course is great for beginners, everything is explained in easy to understand language with plenty of examples Tom Toka ( Aerial Drone Master )”

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Karl Morris

5 star rating

“I think overall this was an excellent tutorial. I moved away from PS, the learning curve for me was jumpy and all over the place form online sources,, Two weeks ago I downloaded Pixlnsight went through an in depth short course for the basic founda...”

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“I think overall this was an excellent tutorial. I moved away from PS, the learning curve for me was jumpy and all over the place form online sources,, Two weeks ago I downloaded Pixlnsight went through an in depth short course for the basic foundations and understandings to get me to a start point. If your a true beginner, maybe buy Galactic Hunter Beginner PixInsight Processing Guide, then move to this. This was exactly what I was looking for after that foundation study. This is targeted towards narrowband, causing me hesitancy as I only have a OSC, I do use dual/tri band filters with the OSC, and if I wanted to keep the channels separate during processing this tutorial has given me great insight in how to do that. I also had no issues following the process just using OSC data. Nothing less than a 10/10 here, two slightly different workflows would be have been nice though, maybe with two different Nebula. The interface is seriously 10/10, great job! Ease of Use 10/10 Value 10/10 Awesome job!! ”

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Jeffrey Adamy

5 star rating

“This was my favorite course. Easy to follow along and the process can dramatically change your image for the better. ”

“This was my favorite course. Easy to follow along and the process can dramatically change your image for the better. ”

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Course curriculum

    1. Welcome to our Professional Data Acquisition and Processing Workflow!

    2. Table of Contents

    3. How to Navigate this Course

    1. Introduction

    2. How to Download Data from the HST or JWST

    3. Organizing your RAW Files and Re-Aligning

    4. How to Understand the Filters

    1. How to Combine the Channels Properly

    2. Processing Data from the JWST

    3. Final Touches in Lightroom

    4. Download a PDF Guide for Professional Data!

    1. Professional Data Acquisition: Summary

    2. Before you go...

    3. The Galactic Course

About this course

  • $18.00
  • 14 lessons
  • 0.5 hours of video content

Antoine Grelin

Instructor Bio:

Antoine Grelin is a French-American astrophotographer and is one-half of Galactic Hunter. Along with his wife Dalia, Galactic Hunter offers astrophotography tutorials, guides, gear reviews, and complete courses for all levels of skill and equipment. Galactic Hunter images have been featured in NASA publications, Astronomy Magazine, BBC, and PBS Television, and have been recognized with awards from APOD, AAPOD2, and Flickr Explore.

Antoine Grelin

Instructor

Additional products

Our premium course and other processing guides