Comet Lemmon (C/2025 A6)
A visitor from the edge of the Solar System, October 2025.
What you get
- Format
- JPEG
- Resolution
- 1 902 × 2 336 px (4.4 MPx)
- Aspect ratio
- 0,81:1
- File size
- 2.5 MB
- Recommended print size
- 16 × 19 cm at 300 DPI – viewed up close
24 × 29 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
Comet C/2025 A6 (Lemmon) was discovered in January 2025 at the Mount Lemmon observatory in Arizona. In autumn 2025 it came close to both the Sun and the Earth. Its green head is coloured by diatomic carbon glowing in sunlight; the thin straight tail is gas blown away by the solar wind.
How the image was made
- Captured
- 13 October 2025
- Total exposure
- 10 min (10 × 60 s)
- Camera
- ZWO ASI2600MC Pro
- Focal length
- 448 mm
- Mount
- ZWO AM5N
- Location
- Banská Bystrica, Slovakia (home observatory)
- Calibration & stacking
- Siril 1.4.0-beta4
- Processing
- Adobe Lightroom 9.0 (Windows)
Data from the original file’s metadata or from the author.