This is a preview. Log in through your library . Oxford University Press is a department of the University of Oxford. It furthers the University's objective of excellence in research, scholarship, and ...
We describe the University of Vienna twin automatic photoelectric telescope (APT) located at the new Fairborn Observatory at Washington Camp in southern Arizona. Not only are the telescopes fully ...
IN his paper on the registering microphotometer, P. P. Koch (Annalen der Physik, iv. 39, p. 705, 1912) describes an arrangement consisting of two similar photoelectric cells connected to an ...
A new instrument designed to investigate the center of the Milky Way galaxy has been announced by Gerhard R.P. Miczaika, Lecturer on Astronomy. The device, an infra-red stellar photometer, picks up ...
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