Pinwheel Galaxy (M 101), close-up
The Pinwheel's arms through a telescope with a focal length of almost 2.8 metres.
What you get
- Format
- JPEG
- Resolution
- 5 421 × 4 066 px (22 MPx)
- Aspect ratio
- ≈ 4:3
- File size
- 27.3 MB
- Recommended print size
- 45 × 34 cm at 300 DPI – viewed up close
68 × 51 cm at 200 DPI – framed on a wall
Larger prints are possible but will look softer up close. - Suitable for
- For printing for personal use, or as a desktop or TV background.
- Licence
- Personal, non-commercial use. You may not resell, share or use the file commercially. Terms
- Watermark
- No watermark. If the image carries the author’s signature, so does the file.
- Delivery
- Download link right after payment – on the order page and by e-mail. Valid 7 days, 5 downloads.
About the object
The Pinwheel (M101) in Ursa Major lies about 21 million light years away and is around 170,000 light years across – almost twice the size of the Milky Way. The pink knots in its arms are regions where stars are forming right now.
How the image was made
- Captured
- 23 July 2025
- Focal length
- 2 762 mm
- Calibration & stacking
- Siril 1.4.0-beta3
- Processing
- Adobe Lightroom 8.4 (Windows)
Data from the original file’s metadata or from the author.