The Specialized Cloud Platform for Astrophotography

Your Raw Sky, Understood.
Store, Plate Solve & Cloud-Stack Your FITS Data.

Replace hard drive graveyards and manual folder digging. Dynamic FITS metadata queries, sub-second WebGL auto-stretching, automated astrometric plate solving, and Siril-powered cloud stacking — directly in your browser.

Nebula Tier 100% Free Forever 15 Solves + 1 Cloud Stack Every Month No Credit Card Required
nyxaion.com / viewer / Pacman_Nebula_Ha_300s.fits
Nyxaion Interactive WebGL FITS Viewer
Astrometry Blind Plate-Solved RA 00h 52m · Dec +56° 24′ · 1.48″/px
Siril 1.4.4 Cloud Stacking Multi-Channel OSC & Mono Registration

Have a FITS file on your machine?

Test our client-side WebGL engine right now. Drag and drop any .fits subframe to stretch, inspect FITS headers, and pan in real time — 100% processed in your browser, zero upload to our servers.

Open Instant FITS Viewer (No Sign-In Required) →

Why Generic Storage Fails Astrophotographers

Standard hard drives and generic cloud storage treat raw astronomy data as opaque binary files. Nyxaion understands the astronomical universe inside your headers.

External Hard Drives

  • Silent disk drive failures with no automated redundancy
  • Messy nested folder trees across multiple physical drives
  • 45 minutes of searching to find last year's darks and flats
  • Zero mobile access when imaging at remote dark-sky sites

Google Drive / Dropbox

  • Blind to FITS headers (EXPTIME, FILTER, RA/DEC ignored)
  • No non-destructive stretching or in-browser previewing
  • Duplicating files into folders doubles your storage costs
  • Zero plate solving, stacking, or calibration matching

Nyxaion Cloud OS

  • Bit-for-bit lossless raw FITS cloud archive
  • Dynamic project queries by target, filter, and coordinates
  • Instant WebGL stretching & real-time color balancing
  • Siril-powered cloud stacking without cooking your computer

Engineered for Astronomy Workflows

Everything you need to organize hundreds of gigabytes of deep-sky data, verify subframe quality, and produce publication-grade master stacks.

Dynamic Projects Query Engine
Smart Collections

Dynamic Projects: Query The Sky

Never manually copy raw files into folders again. Define declarative queries like FILTER = 'Ha' AND OBJECT = 'Pacman Nebula'. As you capture and upload new subframes across months or seasons, your projects automatically aggregate matching frames without duplicating storage.

WebGL FITS Viewer
Hardware-Accelerated

Interactive WebGL FITS Viewer

Open multi-gigabyte 16-bit and 32-bit FITS images in milliseconds. Non-destructive MTF, Arcsinh, and Log auto-stretching, real-time RGB color balancing, deep sub-pixel zoom, pan, and complete FITS header inspection directly in your browser.

Siril Cloud Stacking Engine
Cluster Computing

Siril-Powered Cloud Stacking

Don't let multi-hour subframe registration tie up your local machine. Offload OSC debayering, multi-channel monochrome alignment, calibration frame auto-matching (darks, flats, bias), and multi-panel mosaic stitching to high-powered cloud worker clusters.

Astrometry Plate Solving
Celestial Alignment

Automated Astrometry Plate Solving

Blind plate-solving powered by Astrometry.net and local ASTAP fallbacks. Every subframe or stacked composite can instantly reveal its true celestial coordinates, field rotation, and pixel scale with visual field-of-view overlays.

Predictable, Transparent Pricing

Start free forever on the Nebula tier. Scale up your storage, solving allotment, and cloud stacking as your telescope rig grows.

Nebula
Free
  • 5 GB Storage
  • 1,000 FITS images
  • 15 Solves / mo
  • 1 Stacks / mo (up to 20 frames)
  • 1 Dynamic Projects
  • Public Gallery Sharing
Start Free Forever
Nova
$5.99 / mo
  • 100 GB Storage
  • 10,000 FITS images
  • 75 Solves / mo
  • 3 Stacks / mo (up to 40 frames)
  • 10 Dynamic Projects
  • Public Gallery Sharing
Choose Nova
Supernova
$19.99 / mo
  • 2 TB Storage
  • 200,000 FITS images
  • 1000 Solves / mo
  • 25 Stacks / mo (up to 200 frames)
  • Unlimited Dynamic Projects
  • Public Gallery Sharing
  • REST API Access
Choose Supernova
Cosmos
$44.99 / mo
  • 5 TB Storage
  • 500,000 FITS images
  • 5000 Solves / mo
  • 75 Stacks / mo (up to 500 frames)
  • Unlimited Dynamic Projects
  • Public Gallery Sharing
  • REST API Access
Choose Cosmos

Frequently Asked Questions

Are my raw FITS files compressed or modified?
Never. Nyxaion provides bit-for-bit lossless cloud storage for your original raw FITS files. Previews, histogram stretches, and color balance adjustments are performed on-the-fly via client-side WebGL shaders and lightweight proxy caches without altering your master data.
What capture software and cameras are supported?
Nyxaion supports standard FITS files generated by all major capture applications including N.I.N.A., ASIAIR, Sequence Generator Pro (SGPro), SharpCap, KStars / Ekos, Voyager, and PRiSM. Both monochrome filter-wheel sequences and color OSC (One-Shot Color) sensors are fully supported.
Do I need to enter a credit card to get started?
No. The Nebula tier is completely free forever. You get 5 GB of storage, 15 plate solves, and 1 Siril cloud stack every month with a simple 1-click Google account sign-in. No credit card is required.
How does cloud stacking work?
When you dispatch a stack from your project dashboard, our background cluster runs headless Siril 1.4.4. It handles bad-pixel rejection, dark and flat calibration matching, two-pass sub-pixel registration, and normalization, outputting a stacked 32-bit floating-point master FITS file.
Can I export or download my data anytime?
Yes. You can stream download individual FITS files, download multi-gigabyte ZIP archives of dynamic projects, or request a complete GDPR data export at any time. You maintain 100% ownership of your astronomical data.

Clear Skies Ahead. Your Data In One Place.

Join astrophotographers around the world streamlining their raw FITS storage, automated plate solving, and cloud stacking.

Create Free Account in 30 Seconds
Nebula tier is free forever · No credit card required