C13 Owl Cluster


Mark Griffith

Swindon, Wiltshire. UK

Celestron C11 Sct, Skywatcher NEQ6 pro mount,Atik 383L+ camera, motorised filter wheel and Astronomik filters.

Open cluster in the constellation Cassiopeia.

Cassiopeia full of bright open clusters to image as the milky way runs through this constellation.

PHD auto guiding a bit out so lost 60 minutes of data. Needed to redo the PHD calibration. Still had enough data for a nice image.

LRGB image with 2 hours and 45 minutes of data. 30 Lum 10 red 12 green 12 blue x 2.5 min minute exposures.