|
Hi Andromeda,
I'll try and be brief but most importantly, the best 'scope for you is the one that you will use the most.
Human nature dictates that the more difficult an undertaking is, the less likely we are to do it.
Get the 'scope you think you are most likely to use the most, but having said that ...
The 10" gathers about 50% more light than the 8".
The 12" gathers about 45% more light than the 10".
More aperture means a brighter somewhat more detailed view and many, many more fainter objects become visible. The difference between 8" and 10" large, and 8" to 12" is _thumping_.
Does it have to be portable so it can be taken elsewhere or will you only observe from home? Will it fit in the car? How much room have you got to store it?
The 10 and 12" versions are not that much bigger to store. They are heavier but not _that_ much harder to move around (if you do it in two parts, it's easy). The eyepiece height of the 8" dob can be a bit low to be comfortable for adults
Best of luck with your decision and enjoy the new 'scope.
Best,
Les Dalrymple
Contributing Editor
AS&T
|