Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 175
Fig. 170. object-glass of the telescope falls upon the slit at the endof the collimator tube. A telespectroscope of small dis-persive power is shown in Fig. 171; a being the object-glass of the telescope, cc the tube of the telescope, and … Fig. 171- e the comparison prism at the end of the collimator tube.A more powerful instrument is shown in Fig. 172. A isthe telescope, C the collimator tube of the spectroscope, ASTRONOMY. iS7 P the train of prisms, and E the telescope tube. Fig. 173shows a still more powerful spectroscope attached…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
