Pleiades (M 45)
The Seven Sisters in a blue veil – eleven and a half hours of light.
This photograph is also available in the shop as a full-resolution digital file.
Buy in the shopAbout the object
The Pleiades (M45) in Taurus are an open star cluster about 440 light years away and roughly 100 million years old. The blue nebula around the stars is not the cloud they formed from – the cluster happens to be passing through it, and the dust reflects their blue light.
How the image was made
- Captured
- 7 October 2025 (start, several nights)
- Total exposure
- 11 h 34 min (344 × 121 s)
- Camera
- ZWO ASI2600MC Pro
- Focal length
- 449 mm
- Mount
- ZWO AM5N
- Location
- Banská Bystrica, Slovakia (home observatory)
- Calibration & stacking
- Siril 1.4.0-rc2
- Processing
- Adobe Lightroom 9.0 (Windows)
Data from the original file’s metadata or from the author.