Data Available Instantly

New Raw Data added regularly!

    1. Introduction - Goal and Rules

    2. Table of Contents

    3. What Are Practice Files?

    4. How to Open the Practice Files?

    5. PixInsight Keyboard Shortcuts Cheat Sheet

    1. ⚫️ M24 - The Sagittarius Star Cloud - OSC - Bortle 2

    2. 🟡 M45 - The Pleiades - OSC - Bortle 4

    3. ⚫️ Caldwell 41 - The Hyades - OSC - Bortle 1

    1. 🟡 M13 - The Great Hercules Globular Cluster - OSC - Bortle 4

    2. ⚫️ The Double Cluster in Perseus - Monochrome - Bortle 2

    1. 🟡 M31 - The Andromeda Galaxy - OSC - Bortle 4

    2. ⚫️ M63 - The Sunflower Galaxy - OSC - Bortle 2

    3. ⚫️ Messier 98 - Monochrome - Bortle 2

    4. ⚫️ M101 - The Pinwheel Galaxy - Monochrome - Bortle 2

    5. ⚫️ The Leo Triplet - Monochrome - Bortle 2

    6. ⚫️ IC 342 - The Hidden Galaxy - Monochrome - Bortle 2

    1. ⚫️ M8 & M20 - The Lagoon & Triffid Nebulae - OSC - Bortle 2

    2. ⚫️ M16 - The Eagle Nebula - OSC - Bortle 2

    3. ⚫️ NGC 2264 - The Christmas Tree and Cone Nebula - Monochrome - Bortle 2

    4. ⚪️ IC405 & IC410 - The Flaming Star & Tadpoles Nebulae - Monochrome - Bortle 9

    5. ⚪️ IC1848 - The Soul Nebula - Monochrome - Bortle 9

    1. ⚫️ M78 - OSC - Bortle 2

    2. ⚫️ NGC 1333 - The Embryo Nebula - OSC - Bortle 2

    3. ⚫️ IC 2118 - The Witch Head Nebula - OSC - Bortle 2

About this course

  • $4.99 / month
  • 38 lessons
  • From Bortle 9 to Bortle 1
  • DSLR, Mirrorless, OSC, Mono...
  • Newtonians, Refractors, RASA...

All the Astrophotography Data you could Hope for... in One Place

Galaxies, Nebulae, Comets... It's All Right here.

Raw data is easy to come by. GOOD raw data is hard. Unlimited GOOD raw data with telescope, camera, and light pollution variety, all in ONE place, is impossible... except on the Galactic Course.

Below are a few examples of pictures processed by Antoine Grelin, all of which are included in the pack as a calibrated and ready to process Master file.

Files are for practicing and/or sharing on social media, and so are downsampled on purpose. This is to avoid theft and unauthorized print sales.
  • M78 Nebula
  • IC 342 the Hidden Galaxy
  • The Witch Head Nebula
  • Green Comet
  • Rho Ophiuchi
  • The Pleiades M45

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 Deep Space 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 it All Now

Sign up now to download all the data you want instantly and start processing!

Join Now

Astrophotographer's Bio

Who you're getting your data from

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

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