e bright star will be heading out, toward the south. Reverse this if you are located in the Southern Hemisphere. The technique is only slightly more complicated if you own a telescope on an alt-azimuth mount. To move this type of telescope "north," you have to adjust the altitude and azimuth motions simultaneously.<br><br>The size of your telescope will influence which double stars you observe. The resolution of a telescope only depends on its size. Double star observers often refer to a rule of thumb calle