[chiaroscuro (Luke)]

Hi all,

I was wondering how to accurately measure the angular size of an object in the FOV, and also, how to accurately measure the angular distance between two points in space, either with the naked eye or through the scope. For instance, If a star chart says an object can be found 3 deg 30' 26'' from a known point towards another known point, how can I accurately measure that?

I've seen the estimates using palm width and finger width at arms length, and that the moon can be used as a reference at 0.5 degrees, but how can I be more accurate than that?

Thanks again for your help folks.

Luke