The Processing Bundle is the best option for mastering image processing without getting slowed down by the daunting steep learning curve.

It includes access to all step-by-step PixInsight processing guides - with more course materials in development. Active members of the Galactic Course can enjoy new content updates as they become available.

  • Regularly updated

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

  • 200+ Lessons

  • 11+ Hours of video with commentary

  • Full Access to the Galactic Lounge Community

Pricing Options

Choose what works best for you:

  • Galactic Course - Processing Bundle

    SUBSCRIPTION

    ✅ All processing guides

    ✅ Galactic Lounge community

    ✅ Download raw data and process icons

    ✅ Access to all future content (if your subscription stays active)

    $95.88 / year

    Subscription
  • Galactic Course - Processing Bundle

    LIFETIME ACCESS

    ✅ All processing guides

    ✅ Galactic Lounge community

    ✅ Download raw data and process icons

    ✅ Lifetime Access to all current and future content

    $250.00

    One Time Payment

Bundle Includes

All course materials below are included in the Processing Bundle.

Bonus Perks

Along with the course curriculum, Processing Bundle members enjoy these perks.

  • Priority Support

    Get priority Astrophotography assistance from mentors whenever needed.

  • Exclusive Raw Data

    Get special access to our raw data and process icons to help you master PixInsight!

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.”

Beginner PixInsight Processing Guide

The Beginner Processing Guide is your perfect starting point for learning how to process astrophotography images using PixInsight. This guide is specifically designed for those using color cameras (DSLR, Mirrorless, OSC) and who do not have any experience with PixInsight. This guide will teach you all the basics of the software, and give you a workflow that is purposefully very basic and not daunting. Learn how to calibrate, stack, increase details and colors, reduce noise, and more in an easy-to-follow, beginner-friendly format. Raw data of the Pleiades is provided along with custom PixInsight process icons.
Beginner PixInsight Processing Guide online course

Nebula Processing Guide

The Nebula Processing Guide combines monochrome data into a Hubble-Palette style master, which you then learn to process! Remove gradients, use color masks to reveal all the nice and colorful gasses in the starless image, and more. On top of that, several case studies are added over time showing you how to process different nebulae! Raw data of the North America and Pelican Nebulae is provided along with custom PixInsight process icons.
Nebula PixInsight processing guide online course

Galaxy Processing Guide

The Galaxy Processing Guide teaches you how to get the most details out of your galaxy picture. This guide uses RGB+HA data, so that you can learn how to combine hydrogen alpha, visible in star-forming regions of many galaxies' arms, to the RGB file. You'll also learn how to combine multiple exposure files to create an HDR image and more. Additional case studies are added over time, showing you workflows to process other types of galaxies! Raw data of the Pinwheel Galaxy is provided along with custom PixInsight process icons.
Galaxy PixInsight Processing Guide online course

Comet Processing Guide

The Comet Processing Workflow is a short and sweet guide that acts as your essential manual for processing images of any comet. This guide walks you through each step, from aligning your comet data to isolating and enhancing the tail and nucleus. Learn how to deal with challenges like background stars and noise, and discover techniques to end up with a result that showcases the beauty and dynamic nature of comets. Raw data of the Green Comet is provided along with custom PixInsight process icons.
Comet PixInsight processing guide online course

Professional Data Processing Guide

The NASA Data Processing Guide gives you the tools to work with real, publicly available data from NASA missions, allowing you to try your hand at processing images from space telescopes like the pros. This guide explains how to access, download, and process space mission data from the Hubble and James Webb Space Telescopes, walking you through important techniques to understand and process raw scientific data. With a little bit of practice, you also can create professional-grade images from NASA’s archives!
NASA PixInsight processing guide online course

Milky Way Processing Guide

The Milky Way processing guide shows you how to use PixInsight to get the very best out of your wide-field data! This guide covers everything from noise reduction and contrast enhancement to color correction and detail sharpening. Learn how to make your Milky Way images pop by bringing out vibrant details, and also see how to combine your sky with a foreground using Photoshop. Raw data of the Milky Way is provided along with custom PixInsight process icons.
Milky Way PixInsight Processing Guide online course

Smart Telescope Processing Guide

The Smart Telescope Processing Guide helps you transfer your raw file from the telescope you own (like the ZWO Seestar, Vaonis Vespera, Unistellar eVscope, DWARF and more) to your computer in order to process it. Follow each step to get the best result from your file, and get something you are proud of, no matter how noisy or difficult it is to work with!
Smart Telescope PixInsight processing guide online course

Star Trails Processing Guide

Learn how to combine hundreds of pictures of the night sky together into one image that shows beautiful and clean star trails. Get tips using two different programs, Photoshop and StarStax to achieve the same awesome result. On top of that, also learn how to properly blend a different foreground for your star trails sky! 106 pictures of the sky are provided to let you practice on the guide with our own personal files!
Star Trails Processing Guide online course

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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Walter Pastor

5 star rating

“Well organized course with clear and practical explanations for a novice like me. Thank you. ”

“Well organized course with clear and practical explanations for a novice like me. Thank you. ”

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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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Aerial Drone Master

5 star rating

“If you are a completely beginner in PixInsight, I strongly recommend this course. You will learn from A to Z how to edit any photo in PixInsight”

“If you are a completely beginner in PixInsight, I strongly recommend this course. You will learn from A to Z how to edit any photo in PixInsight”

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Jim Eckes

5 star rating

“Great Job. This answered a lot of questions.”

“Great Job. This answered a lot of questions.”

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Apple User

5 star rating

“The course was very easy to follow and informative. You guys did a great job and I probably will sign up for part two”

“The course was very easy to follow and informative. You guys did a great job and I probably will sign up for part two”

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Marco Stra

5 star rating

“Even though I have been using PixInsight for a long time, I discovered many functions and techniques that I had never used. [Translated from Italian]”

“Even though I have been using PixInsight for a long time, I discovered many functions and techniques that I had never used. [Translated from Italian]”

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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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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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Jason Knight

5 star rating

“Good job”

“Good job”

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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

Get the Processing Bundle!

The Galactic Course Processing Bundle provides what you need to boost your image processing skills.
Learn how to process specific celestial objects in the best image processing software with the same workflows used by your mentors and experiment to develop your style!
Processing Bundle all content

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

50% Off the Raw Data Pack

Half Price Discount Membership to the Raw Data Pack

Get access to the Raw Data Pack for half the price, which includes dozens and dozens of Master Files for all types of targets!

Practice your processing skills on galaxies, comets, emission nebulae, reflections nebulae, supernova remnants, smart telescope files, Milky Way, Star Trails... Coupon included in the Processing Hub!
Galactic Hunter Space Wallpapers

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 processing tips, share photos, and stay updated on events and announcements!
Galactic Lounge Community Home page

FAQ

  • How does support in the Galactic Course work?

    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.

  • Do I need a telescope (or gear) to use the course?

    Not necessarily. Some seasons focus on astrophotography with a telescope, but you don't need a telescope or gear right out the gate. Rushing into making a purchase is not what we intend to teach. We encourage following along before making an expensive purchase that might later be regretted.

  • Why does the bundle have yearly dues for the subscription?

    The Galactic Course is a growing library of astrophotography content. As such, it takes tremendous effort to curate lessons, as well as write, film, edit, and revise content to complete the end product. Yearly dues support the Galactic Course mentors' work in creating new lessons and guides. Yearly dues are only for members that are in the subscription model. Students who have lifetime access do not pay these dues.

  • What happens if I don't pay my yearly dues?

    [This does not apply to lifetime members who paid a one time fee] Subscribed members are subject to yearly dues in order to retain access to the Galactic Course. Otherwise, they will not be able to access the content. A member is not obligated to pay their dues if they wish to stop learning with the Galactic Course. Non-active members can regain access by paying the yearly dues.

  • What if I only want a specific course or want a specific guide?

    You can purchase specific course lessons or processing guides separately. Only pay for the course materials you want to learn from. However, it may become more costly than a bundle so be sure to weigh your options. While there is no obligation to buy the Ultimate Bundle, the biggest benefit of investing is getting access to all course materials and processing guides, plus perks!

Premium Bundles

  • Galactic Course - Processing Bundle

    This bundle provides access to lessons, videos, and raw data to help you completely master your astrophotography processing skills. Included are dedicated workflows for processing nebulae, galaxies, comets, Milky Way, and more.

    $95.88 / year

    Join Now
  • Galactic Course - Ultimate Bundle

    The Ultimate Bundle of the Galactic Course includes ALL processing guides, ALL imaging courses, the Raw Data Pack, Wallpapers, and much more! This is the best investment for the price and the largest of our bundles.

    $299.00 / year

    Join Now