Andromeda Galaxy (M 31)
The most distant thing you can see with the naked eye – and yet our neighbour.
This photograph is also available in the shop as a full-resolution digital file.
Buy in the shopAbout the object
The Andromeda Galaxy (M31) lies about 2.5 million light years away and is the nearest large galaxy to our Milky Way. It contains an estimated trillion stars. Its smaller companion galaxies are also in the frame. The image was taken under the dark skies of Poloniny.
How the image was made
- Captured
- 27 August 2025 (start, several nights)
- Total exposure
- 9 h 24 min (144 × 235 s)
- Camera
- ZWO ASI2600MC Pro
- Focal length
- 449 mm
- Mount
- ZWO AM5N
- Location
- Poloniny Dark-Sky Park, Slovakia
- Calibration & stacking
- Siril 1.4.0-beta3
- Processing
- Adobe Lightroom 8.5.1 (Windows)
Data from the original file’s metadata or from the author.