Individual Courses

Available Course Lessons

Processing Guides

Step-by-step PixInsight workflows

What People Say

Wanda Taylor

5 star rating

“I have learned a lot from this course which includes the planning, set-up of equipment and processing the final image. The material in the course is easy to follow. And the feedback from Antoine has helped my astrophotography journey.”

“I have learned a lot from this course which includes the planning, set-up of equipment and processing the final image. The material in the course is easy to follow. And the feedback from Antoine has helped my astrophotography journey.”

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Charles Marchand

5 star rating

“I made the move from visual to astrophotography about a year ago. I have been heavily leveraging Galactic Hunter's instructional videos on Youtube, as well as following their step by step guides for image processing. I have a growing collection ...”

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“I made the move from visual to astrophotography about a year ago. I have been heavily leveraging Galactic Hunter's instructional videos on Youtube, as well as following their step by step guides for image processing. I have a growing collection of frame worthy images and I thank Galactic Hunter for it!”

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Jeff Halter

5 star rating

“It has been quite a learning curve for me because it really is hard to teach old dogs new tricks. I started in 1982 and set my scope aside in 2001. I started again in 2020 and things have really changed. This was just the thing I needed to get bac...”

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“It has been quite a learning curve for me because it really is hard to teach old dogs new tricks. I started in 1982 and set my scope aside in 2001. I started again in 2020 and things have really changed. This was just the thing I needed to get back on track.”

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Zak Jones

5 star rating

“I have autism and found this course VERY helpful and educational! I found some videos on the internet about astrophotography are sometimes too hard for my auditory processing to fully understand, but this course is so beginner friendly, it is o...”

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“I have autism and found this course VERY helpful and educational! I found some videos on the internet about astrophotography are sometimes too hard for my auditory processing to fully understand, but this course is so beginner friendly, it is one of my go-to resources! I rely heavily on visual learning and the videos have helped me improve my post-processing and camera settings a LOT. For example, I am now shooting my pictures in the correct exposure on the histogram, and so far it has worked out far better than I expected and the post-processing videos are very simple and easy to follow-along. One of the course's best aspects is the layout. You can read and watch anything you want, when you want in no order. Other resources are set in a way where you have to watch them in a particular order, and I love the flexibility that this course has. Antione and Dalia definitely know what they are doing. I highly commend and thank both of them for creating this course. Their knowledge is invaluable and I cannot wait to see what the other seasons have in store! Zak Jones - NSW, Australia”

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Kathy Caballero

5 star rating

“Very informative, and summarized nicely.”

“Very informative, and summarized nicely.”

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Tom Greer

5 star rating

“This truly is an all-in-one course for learning astrophotography. It will help you choose what equipment you will need. Or if you already have some equipment it will help you to get the best out of your equipment. It covers everything from the equ...”

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“This truly is an all-in-one course for learning astrophotography. It will help you choose what equipment you will need. Or if you already have some equipment it will help you to get the best out of your equipment. It covers everything from the equipment, to taking the pictures, to how to edit the pictures. And then it even shows you where to get your picture printed to show off the skills that you have acquired.”

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Steve Young

5 star rating

“Lots of top tips, useful advice and good content. I’m enjoying being part of it and it has definitely improved my understanding, skill level and results for astrophotography. Worth doing.”

“Lots of top tips, useful advice and good content. I’m enjoying being part of it and it has definitely improved my understanding, skill level and results for astrophotography. Worth doing.”

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Lachlan McClelland

5 star rating

“Astrophotography is an intense hobby and it can be hard to know where to start or find the information and help needed throughout the learning process. I had always wished there was an all in one class or course to help lay it all out in the same ...”

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“Astrophotography is an intense hobby and it can be hard to know where to start or find the information and help needed throughout the learning process. I had always wished there was an all in one class or course to help lay it all out in the same way I have learned my other photography skills. When I saw this course announced I was super excited and signed up right away. It is very informative and well put together, covering everything a beginner would need to know. Highly recommend.”

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Stephen TAYLOR

5 star rating

“The advanced processing piece is loaded with great Milky way processing tips that actually simplify things.”

“The advanced processing piece is loaded with great Milky way processing tips that actually simplify things.”

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Harish Krishnakumar

5 star rating

“Great content, taught by knowledgable teachers :)”

“Great content, taught by knowledgable teachers :)”

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Jimmy Ragsdale

5 star rating

“Don't know how to start, stuck in the middle, been doing this for along time and want some new ideas! This is the spot to be. ”

“Don't know how to start, stuck in the middle, been doing this for along time and want some new ideas! This is the spot to be. ”

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taj martinez

5 star rating

“Beyond all expectations 5 stars if you don't want to Read the review. So lets go back towards the end of 2024 Octoberish. My son's 10 years old started falling in love with space. and learning about nebulas. so we were watching YouTube videos abou...”

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“Beyond all expectations 5 stars if you don't want to Read the review. So lets go back towards the end of 2024 Octoberish. My son's 10 years old started falling in love with space. and learning about nebulas. so we were watching YouTube videos about telescopes and so I knew what he was looking at image wise so I started looking at smart telescopes that stacked the photo and would give him a glimpse of what he's most curious about. so we watched your vespera videos 30x and comparison video, I let him choose telling him I will work the overtime and get it if you truly want it so after a couple months of watching videos about it and different reviews he would have your videos on repeat. So come Christmas I bought him the vesperra 2 and the 3 filters and the warmer to prevent fog when its cold. Then i started thinking if there was a course or class specific to editing the vespera photos.(smart telescope photos) and I started looking and I seen a different tutorial you posted on the Channel. Which led me to website and led me to the "exact" thing i was looking for. The knowledge I learned in the course priceless the lesson plan is very informative and laid out in way that truly anyone can get through with time patience and practice. My only tip is make copies as you go of your work. Because I messed it up a few times. But the more you do it the more familiar you are the better the experience gets. My intentions are to teach my son what I learned in hoping he will be able to process his images from the new telescope. So for that I'm forever grateful. Thank you. I mean that. I'm sure I will take the other courses because now I'm curious of the full pix insight potential and new found love inside astrophotography. Thank you again. 5 STARS”

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Instructor Bio

Learn from mentors who truly care

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

Instructor Bio

Learn from mentors who truly care

Dalia Grelin is an American amateur astronomer and the second half of Galactic Hunter. She has a BSBA in Marketing and had a career in digital marketing. She assists with marketing, filming videos, and creating astrophotography content. As a supportive wife and assistant to Antoine, Dalia also has expertise in astrophotography knowledge from years of working on Galactic Hunter.

Dalia 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

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Thank You

Automatically get Full Access to the Galactic Lounge ☕️

A Space where Everyone is Welcome

Once you are a student of any course or guide, you get free unlimited access to 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!
Galactic Lounge Community Home page

Our Three 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.

    $7.99/month | Billed annually

    $95.88 / year

    Join Now
  • Galactic Course - Courses Bundle

    This bundle includes all our astrophotography lessons (Deep sky imaging with a telescope, Milky Way photography, Star Trails, Time-lapses, Remote Imaging, untracked...) and bonus perks.

    $12.99/month | Billed annually

    $155.88 / year

    Join Now
  • Galactic Course - Ultimate Bundle

    The Ultimate Bundle of the Galactic Course includes not only all the processing guides, but also all of the course lessons guides! This is the best investment for the price and the largest of our bundles.

    $24.99/month | Billed annually

    $299.88 / year

    Join Now