Ever wondered how hard it is to align a big dob? Here’s a quick How-to!
SDM Telescopes
20-40 inch custom built classic style Dobsonians
Ever wondered how hard it is to align a big dob? Here’s a quick How-to!
I think there’s some advice out there concerning the choice of stars to improve accuracy. Like avoiding stars less than 20 degrees from the horizon, or ones above 70. The rotational angle between the two chosen stars is also another factor.