Reply To: Seestar S50 self-help group

Forums Telescopes Seestar S50 self-help group Reply To: Seestar S50 self-help group

#626089
Dr Paul Leyland
Participant

Thanks. It looks like a generic problem as your image also shows rings around the brighter stars.

Not a deal breaker as photometry is very tolerant of slightly blurred and/or trailed images and I want to do science and not artwork.

Anyway, such artefacts can often be cleaned up in post-processing.

It appears that my image is not properly focused. It should be obvious, but wasn’t, that auto-focus should be run every time before taking images. One day I will print a Bahtinov mask to see how well AF works. Reports are that it is pretty good.