AAVSO: American Association of Variable Star Observers
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The Stewart Stereophotometer

Volume 26 number 2 (1998)

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Robert J. Stewart

Abstract

The author describes a unique visual photometer he designed, built, and installed on his 44-cm Dobsonian reflector to assist him in making variable star observations of greater accuracy and with less potential for errors from the usual sources. Details of its operation, observational benefits, and some preliminary results are given.