NGC 7129 open cluster, at about 3000 light-years in Cepheus, associated with LBN 497 reflection nebula.

Integration : 26 hours in Amiens City (France) in June and July 2020 with :
RC8 Altair Astro scope
Avalon Linear Mount
QHY163mm + Astrodon filters

L : 110x300s + 155x120s
RVB : 15x300s each
Halpha 5nm : 94x300s

Focal length : 1600mm
Scale : 0.49″/pixel
Bortle 6
2.2<FWHM<2.8

Acquisitions Prism V10
Processing Pixinsight, Photoshop

Autore: Guinot (sito)