The People Behind the Lessons
Antoine Grelin
Founder & instructor
The astrophotographer behind the Galactic Course and Galactic Hunter. Antoine teaches deep sky imaging, PixInsight processing, smart telescopes, and more through straight-to-the-point lessons built around his own style of images.
Mark Johnston
Solar imaging instructor
A solar astrophotographer, author, and NASA Solar System Ambassador. Mark brings years of solar imaging experience and public astronomy outreach to his lessons on processing images of the Sun.
Craig Stocks
Photoshop processing instructor
A photographer since the 1970s and a retired mechanical engineer. Craig combines his experience in image processing with a practical teaching style in the Beginner Photoshop Processing Workflow.
Dalia Grelin
Galactic Hunter's 2nd half & awesome mom
A familiar face from the beginning of Galactic Hunter. Dalia helped create its videos and educational content. She stepped away from working on Galactic Hunter in 2024 when baby Cooper was born, and still appears in some Galactic Course lessons.
Why I Bring in Other Instructors
My goal with the Galactic Course is to eventually cover every aspect of astrophotography in one place. That means bringing in people who are true experts at certain subjects.
I’ve spent years learning, practicing, and teaching this hobby, but knowing a lot about astrophotography doesn’t make me the best person to teach every topic. For subjects like solar imaging or northern lights among others, I choose instructors whose experience I admire and trust.
I want you to learn from people who really understand what they’re teaching, with the care and depth each subject deserves.
Antoine Grelin