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Processing collection

Free Data

My finished astrophotography stacks, ready for you to explore and process.

Free Browse the files

19 XISF files · Approximately 6.0 GB in total. Download only the files you want. No checkout or payment required.

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The glowing ring of the Helix Nebula against a field of stars.

Start with a stack.

These are finished stacks in XISF format, rather than individual camera exposures. Open them in PixInsight or another application that supports XISF to work on your own processing.

Choose your download.

The data stays on Google Drive. Each link opens the file page, where you can choose Download. Large files may show Google's virus-scan size notice. File sizes below are approximate.

Personal learning.

Use the data for personal learning and processing. See the Free Data licence before downloading.

Choose your target

The data library.

19 files

Preview the target, then download its stack. Processed references show the target rather than a promise of the unprocessed file's appearance. Automatically stretched previews are generated from the named stack.

19 datasets available. Choose any file below.

Centaurus A (2026) — processed reference.
Processed reference

Centaurus A (2026)

212.2 MB

Centaurus_A_2026.xisf

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NGC 6744 — processed reference.
Processed reference

NGC 6744

140.8 MB

NGC6744.xisf

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Helix Nebula (1000mm) — processed reference.
Processed reference

Helix Nebula (1000mm)

130.9 MB

Helix1000mm.xisf

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Trifid Nebula (1000mm broadband) — processed reference.
Processed reference

Trifid Nebula (1000mm broadband)

135.6 MB

Trifid9hBB1000mm.xisf

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Herschel's Ray (1000mm narrowband) — processed reference.
Processed reference

Herschel's Ray (1000mm narrowband)

140.3 MB

Herschel's Ray (Narrowband, 1000mm).xisf

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Tarantula Nebula (1000mm) — processed reference.
Processed reference

Tarantula Nebula (1000mm)

128.7 MB

Tarantula1000mm.xisf

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Horsehead Nebula (1000mm) — processed reference.
Processed reference

Horsehead Nebula (1000mm)

136.9 MB

Horsehead1000mm.xisf

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M33 / Triangulum Galaxy — processed reference.
Processed reference

M33 / Triangulum Galaxy

135.8 MB

SouthernPinwheel.xisf

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NGC 1365 — processed reference.
Processed reference

NGC 1365

141.1 MB

NGC1365_1x_drizzle_uvircut.xisf

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Corona Australis — processed reference.
Processed reference

Corona Australis

131.7 MB

Australis.xisf

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Prawn Nebula — processed reference.
Processed reference

Prawn Nebula

539.2 MB

Prawn.xisf

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Fighting Dragons of Ara — processed reference.
Processed reference

Fighting Dragons of Ara

570.3 MB

DragonsOfAra.xisf

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Trifid Mosaic — lagoon and trifid mosaic reference.
Lagoon and Trifid mosaic reference

Trifid Mosaic

571.6 MB

Trifid(Mosaic1).xisf

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Lagoon Mosaic — lagoon and trifid mosaic reference.
Lagoon and Trifid mosaic reference

Lagoon Mosaic

570.4 MB

Lagoon(Mosaic1).xisf

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Thor's Helmet — processed reference.
Processed reference

Thor's Helmet

545.8 MB

ThorsHelmet.xisf

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Ghost of Hadar — processed reference.
Processed reference

Ghost of Hadar

535.1 MB

GhostOfHadar.xisf

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Running Chicken Nebula — processed reference.
Processed reference

Running Chicken Nebula

546.3 MB

RunningChicken.xisf

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Carina Nebula — processed reference.
Processed reference

Carina Nebula

133 MB

Carina.xisf

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Rosette Nebula — processed reference.
Processed reference

Rosette Nebula

545.8 MB

Rosette.xisf

Download data

The Finished Stacks collection, excluding AshensPixIcons, 47 Tucanae, the 2024 Centaurus A stack and the older Helix stack. The file named SouthernPinwheel.xisf contains M33 / Triangulum Galaxy. Downloads open on Google Drive. Saving a selection creates a small HTML file containing your chosen download links; it does not bundle the XISF data.