The great cluster in Hercules Messier 13 with 600mm on an APS-C chip.
High resolution on Flickr:
Side by side comparison – 2022 vs. 2024 processing
The side by side comparison of both results.
Technical overview
| Telescope | VIXEN ED80sf |
| Focal Length | 600mm |
| Aperture ratio | 7.5 |
| Erecting Lense | TSFlat2 |
| Filter | Optolong UV/IR Cut |
| Mount | Skywatcher HEQ-5 |
| Goto-Control | EKOS |
| Mount Control | INDI |
| Guiding Scope Focal Length | 162 mm |
| Guiding Camera Chip | 4.8mm x 3.6mm, 8bit |
| Guiding Camera Resolution | 1280×960 |
| Guiding Software | EKOS, INDI |
| Dithering | 3 pixel |
| Camera | CANON EOS M100(a) |
| Method | focal projection |
| Camera angle | – |
| Camera Control | EKOS, INDI, Gphoto2 |
| Photography Date | 06/01/2022 |
| Exposure-Time Lights | 24x300s |
| Correction frames | FLATS, BIASES |
| Sensitivity | ISO 400 |
| Post Processing Date | 06/02/2022 |
| Reprocessing Date | 01/04/2024 |
| Stacking, Integration | SiriL |
| Post Processing Software | SiriL |
| Image Editing | Affinity Photo |
| Reprocessing Software | PixInsight |
| Capture Place | Koblenz, Germany |
| Lightpollution | Bortle 5 |
| Scattered light | strong |
Hallo Thomas Hanrath,
Ich schreibe über Deepsky für Amateure in Holland und möchte dieses Bild (M13) gebrauchen.Ist das erlaubt? Selbstverständlich nenne ich Sie als den Autor.
Clear skies!
Mat Drummen
Hallo Mat,
sehr gerne.
Beste Grüße und Clear Sky,
Thomas