Abstract
The paper describes one of the visual photometers which have been developed at the Stockholm Observatory and its solar station in Anacapri, in connection with the solar patrol which has been operating in these observatories for several years. The instrument, which uses a Savart polariscope as detector, can be used for measuring disk phenomena as well as limb phenomena, and is particularly well adapted for use as an auxiliary instrument when working with birefringent filters. It has proved useful in spectrophotometric measurements as well.
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