Imaged at -30 C, gain 0
about 75 30 seconds exposures per filter, for a total of just under 2 hours.
Scope: SW 150PDS on SW AZ EQ6 mount.
There was moisture on the primary mirror, which may have caused the bright are in the middle.
File comment: ngc 7686, open cluster in Adromeda
ngc7686.jpg [ 1.05 MiB | Viewed 43 times ]
cameras: ASI 174MM-Cool, ASI 120MM (guiding)
telescope: Skywatcher 150PDS, SW ST80 (guiding)
mount: Skywatcher AZ EQ6 GT
software: INDI Ekos/Kstars, PixInsight