The Clear Sky Evening
NGC 6914
Astrophoto NGC 6914 Clear Sky 18.
The primary target of my astrophoto evening (NGC 6914) is, for a 600mm telescope with an APS-C chip, a bit small. But i like the contrast of the blue reflection nebula and the red emission nebulae. Here the high resolution Astrophoto on Flickr:

Lessons Learned
Lightreflection
In the upper left part of the picture is a lightreflection i never had before. Possibly the caused of a nearby lamp. I ll have to see, if this is a one time-effect or if this is caused by the combination of the lamp and my new flattener.
Flattener
This picture is the 1st one i shoot with a flattener in my refractor, the TSFlat2. The stars are round! Even in the corners.
Exposure time
The total exposure time of only about 120 minutes is really a bit too short. It would be good for the image if i could double the exposure time. But taking the weather sitution into count, i can be very pleased with the result.
Technical overview of Astrophoto NGC 6914 Clear Sky 18
Telescope | VIXEN ED80sf |
Focal Length | 600mm |
Aperture ratio | 7.5 |
Erecting Lense | TSFlat2 |
Filter | – |
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 | 0° |
Camera Control | EKOS, INDI, Gphoto2 |
Photography Date | 18.07.2021 |
Moon | 68% |
Exposure-Time Lights | 37x180s |
Sensitivity | ISO 800 |
Calibrationframes | Flats, Bias |
Post Processing Date | 19.07.2021 |
Stacking, Integration | Affinity Photo |
Post Processing Software | Affinity Photo |
Image Editing | Affinity Photo |
Capture Place | Koblenz, Germany |
Lightpollution | Bortle 5 |
Scattered light | strong |