Re: (IAAC) Obj: M 42, Trapezium - Inst: 25" Obsession
Thanks for the report! With that sized scope (WOW) colors must be quite
<BG>. During the spring and summer months, I rely on color in the Ring
Nebula to gauge my sky conditions. The more distinctly green it looks, the
better and clearer the skies are.
Another weird way I gauge sky transparency and darkness... by the amount of
distinctly yellow stars I see. If I see a lot of yellow suns as opposed to
plain washed out white, it usually means the seeing is going to be very