This morning there was heavy frost here in New Mexico, 22 degrees
F, and while observing Jupiter at dawn I had to use a hair drier
frequently ( on low setting, gently ). When I ended my session and
was replacing the front cover lid I noticed that there was
moisture on the primary mirror inside the scope.? I never noticed
any moisture before on the primary mirror all through last year
and I used the scope a lot.
I keep the telescope always in place outside under a telegizmos
cover. It is never inside.
Is this common to have moisture develop on the primary mirror??
See moisture at arrows in pic.
I wonder if something changed ( unsealed or something? ) over the
course of the year with my C14 Edge HD?
Thanks in advance for any replies.
Thomas