|
It's worth trying to figure out what kind of magnification is useable in your yard. Of course the seeing conditions are different every night but you may be able to figure out what eyepiece you can use most of the time, and save the Barlowed high mags for the nights of exceptional seeing.
I have no yard but two balconies - one faces East and one faces West. On the East facing one I can use 200x most nights in my 8" Newtonian. However, the other side looks over a busy road and the air turbulence limits me to 150x or less.
If your scope has a focal length of around 1200mm you would get 200x with a 6mm eyepiece, so that would be my starting point. But 8.8mm or 8.5mm would be good too, and could be Barlowed on those great nights when you really want to crank it up.
|