Turner, H. H. (Herbert Hall), 1861-1930 · London, E. Arnold · leaf 122
re BRADLEYS DISCOVERIES 97 delicate piece of apparatus than Hooke had em-ployed. It was a telescope 24 feet long pointed Thein- ^ -^ ^ 1-1-1 struraent. vertically upwards to the star, and firmly attachedto a large stack of brick chimneys within thehouse. The telescope was not absolutely fixed,… … Fig. 2. tion, however slightly, the reading of this screwwould show the change. Now, before setting out Expectedon the observations, the observers knew what to ^^^^expect if the star had a real parallax; that is tosay, they knew that the star would seem to be farthest south in December, farthest…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
