Our PixInsight processing guides are designed to be easy-to-follow tutorials with images and instructions.

Learn how to process images of the subject 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.

  • Lifetime access with free updates

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

  • 20 videos with commentary | Written workflow for each step

  • Downloadable videos for offline learning

Get the BEST out of your Files

Don't underestimate how much potential your data has! Reveal all the colorful but faint hidden gasses lost in the background and see what you truly captured during the night.

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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Karl Morris

5 star rating

“Awesome Job!! 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...”

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“Awesome Job!! 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 you're a true beginner, maybe buy Galactic Hunter Beginner PixInsight Processing Guide, then move to the others. 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. [Now included]. The interface is seriously 10/10, great job! Ease of Use 10/10 Value 10/10 Awesome job!!”

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alberto trinca

5 star rating

“This course is amazing ! I've learned a lot of techniques and got my images enhanced !!”

“This course is amazing ! I've learned a lot of techniques and got my images enhanced !!”

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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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Course Curriculum

    1. Welcome to our Nebula Processing Workflow!

    2. Table of Contents

      FREE PREVIEW

    3. How to Read this Guide

    4. Come Say Hello! ☕️

    5. Before We Start

    6. [Optional] Bi-Color Combination

    7. Download our Raw Data

    8. Download our Process Icons

    1. Blink

    2. [Optional] Cosmetic Correction

    3. Weighted Batch Pre-Processing

    4. Common Stacking Issues

    5. [Optional] Stacking Without the Script

    1. Dynamic Crop

    2. Background Extraction

    3. Star Size Reduction and Detail Enhancements

    4. Noise Reduction

      FREE PREVIEW

    5. Combining the Channels

      FREE PREVIEW

    6. Stretch to Non-Linear

    1. Green Removal

    2. Star Extraction

    3. Detail Enhancements

    4. Color Masks

    5. Contrast Curves

    6. Dark Structure Enhance

    7. Adding the Stars Back and Fixing Star Color

    8. Final Curves and Image Export

    1. Final Touch using Lightroom

    2. The Final Image

    3. Workflow Summary

    4. Before you go...

    5. The Galactic Course Ultimate Bundle

    1. Free Alternatives to the RC-Astro Plugins

    2. Bonus: PDF Guide for Professional Data

    3. PixInsight Keyboard Shortcuts Cheat Sheet

    4. Case Study #1: Processing the Witch Head Nebula and bright star Rigel

    5. Case Study #2: Processing Messier 78

    6. Case Study #3: Processing NGC 1333 - The Embryo Nebula

About this course

  • $50.00
  • 38 lessons
  • 2.5 hours of video content

Stack your Nebula files

Use the WBPP script or individual processes to get your Master files

Get rid of unwanted files, then learn the best way to stack your nebula files using PixInsight. Use the WBPP script to easily stack all your data together, but also learn how to stack without script, just in case! We'll also teach you how to deal with common stacking errors you may encounter.
How to stack on PixInsight

Combine Monochrome Channels

From Gray to Color

Learn how to properly combine different monochrome files into one color image. This specific guide uses the most beloved style of channel combination for emission nebulae: the Hubble Palette, which will give you beautiful blue and gold colors!
Learn to combine channels into one

Process your Image - with our Favorite Workflow

Process your images exactly the same way we do it!

Follow the lessons and see how you can achieve a fantastic result on your data using our workflow. Use the power of PixInsight to get the very best picture out of your data. Learn to bring out the details, reduce the noise, and show rich colors in your nebula.
Process a nebula on PixInsight

Ready to Process?

Monochrome H+S+O

Whether you are planning to use your own data or the provided raw data, you can be certain to get great results. 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.
NGC7000 processed with an easy pixinsight workflow

The “Anyone Can Do It” Approach

“These guides include some advanced techniques, but are designed with simplicity in mind. No endless jumping back-and-forth between programs, no crazy PixelMath equations every five minutes, and no unnecessary daunting tweaks that barely make a difference.

Anyone, beginner or experienced, can follow the workflow from beginning to end and get the exact same impressive result shown.”

Instructor

Antoine Grelin

Full Access to the Galactic Lounge ☕️

A Space where Everyone is Welcome

Join the Galactic Lounge, a growing community for astrophotographers to connect, share tips, ask questions, and get expert help. Access a supportive forum for all things Astrophotography, share photos, and stay updated on events and announcements!
Enter the Galactic Lounge Now
Galactic Lounge Community Home page

Free PixInsight Shortcuts PDF

All the Shortcuts in One Place

Get access to a printable PDF file that lists the PixInsight Keyboard Shortcuts, all on one single sheet. This is a very useful resource to have on the side which will make your processing much faster.
PixInsight shortcuts sheet

Get the Nebula Processing Guide Now

Instantly access our Nebula Processing Workflow and start learning immediately!

Buy Now

Bonus Material

  • Raw Data & Process Icons

    This workflow contains high-quality raw data of the North America and Pelican Nebulae. You can download this data to practice or follow along with the guide. Custom process icons are also included to import into PixInsight and save time!

  • Professional Data Processing PDF

    Download a bonus PDF guide that teaches you how to acquire and process professional data from NASA. Learn how to process files from the James Webb Space Telescope on your own computer!

  • Discount for Ultimate Bundle

    Upon completion of this course, you receive a $50 discount for access to our Ultimate Bundle - which provides access to all courses and guides, plus perks.

Extra Content!

Learn processing techniques for various types of nebulae

Additional 4K walkthrough tutorial videos are added to the guide over time as "case studies". These commentary videos teach you how to process different objects from start to finish so that you can get the same result as ours! These are useful as they help you learn how to work with various types of targets.
Processing the Witch Head Nebula

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, Flickr Explore, AAPOD2, and more.

Antoine Grelin

Instructor

Awards & Features

Our astrophotography has been featured in the following and many more:

  • AAPOD 2 Logo
  • PetaPixel France
  • NASA Logo
  • BBC Sky At Night magazine
  • PBS Outdoor Nevada astrophotography
  • Universo Magico Logo
  • ZWO Logo
  • QHYCCD logo
  • Space Junk podcast logo
  • M78 nebula astrophotography with a telescope
  • The Witch Head Nebula astrophotography
  • NGC 1333 - The Embryo Nebula astrophotography with a telescope

FAQ

  • Do I need my own files to use the course?

    Not necessarily. We encourage you to use your own data, but also provide high-quality master files of the Pleiades that we shot from the Nevada desert! You can download these files to follow along and do exactly what we do in the videos with the exact same files. This is great if you'd like to practice before using your own data.

  • How long will I have access to the course material?

    Courses that are purchased individually give you lifetime access with no expiry date. Bundles on the other hand, which include all courses at a low price, have a small yearly renewal fee. More info on that can be found on the bundle pages.

  • What kind of support is available if I have questions during the course?

    We receive a lot of emails and messages on social media each day from people seeking help with astrophotography. We do our best to reply to everyone, but it is not always possible. We prioritize emails from both Galactic Course members and Patreon.

  • Can I access the course on mobile devices?

    Yes, you can access the course on any device, which include computers, tablets, and smartphones.

  • Can I access the course offline?

    The course lessons are hosted on an online platform, but you will have the option to download the videos and watch them at any time, even when offline!

  • Can I follow this guide if I never used PixInsight?

    This guide assumes you have basic knowledge of PixInsight, which is why it is quite compact and goes through each process quickly. In case you are a complte beginner or feel “rusty”, be sure to take a look at our Beginner's Guide to PixInsight which is the perfect starting point before tackling all other guides!

Additional Products

Check out our Processing Bundle and other processing guides