FITS File Format
The Flexible Image Transport System (FITS) is the international standard for astronomical data — used by NASA, ESA, and all major observatories since 1981.
Source →Downloads
Tools & Data Downloads
Free astronomical data and image processing software — explore the Milky Way survey from Purple Mountain Observatory, or restore your astrophotography images with LegalPhotoRestorePro.
FITS Milky Way Survey
Download raw FITS astronomical data from the Purple Mountain Observatory's Milky Way Survey (银河画卷). This dataset contains wide-field molecular cloud mapping data suitable for research and astrophotography post-processing — published via the Science Data Bank (scidb.cn).
Go to Download →LegalPhotoRestorePro
A free image restoration software designed for repairing damaged, scratched, or faded astrophotography images. Supports batch processing, AI-powered scratch removal, and high-resolution export — ideal for cleaning up scanned film astrophotos or restoring historical observatory plates.
Learn More & Download →Knowledge & References
Open Data in Astronomy
Modern astronomy is built on open data. The Virtual Observatory (IVOA) connects over 20,000 public datasets from telescopes worldwide.
Source →Image Restoration
Computational photography techniques — deconvolution, denoising, scratch removal — recover details from damaged or historical astrophotos without altering scientific content.
Source →The Milky Way Survey
The Purple Mountain Observatory's Milky Way Survey (银河画卷) has mapped molecular clouds along 2,400 square degrees of the galactic plane using CO emission lines.
Source →Frequently Asked Questions
- What is the FITS Milky Way Survey?
- The Milky Way Survey (银河画卷) is a large-scale astronomical survey conducted by the Purple Mountain Observatory, mapping molecular clouds along the galactic plane using CO emission line observations. The FITS data is publicly available via the Science Data Bank (scidb.cn) for research and educational use.
- Is LegalPhotoRestorePro free?
- Yes. LegalPhotoRestorePro is a free image restoration tool. Visit the introduction page at hummingbirdlabs.github.io/LegalPhotoRestorePro for full feature details and download instructions.
- How do I open FITS survey data?
- Use FastTool's free FITS Viewer to open and preview FITS files directly in your browser — no download or installation needed. For advanced processing, try AstroSky (Windows desktop app) or SAOImage DS9.
Related Tools
Download links on this page point to external data repositories and software distribution sites. FastTool does not host, track, or intermediate any downloads.