Photoelectric photometer filters
Title
Photoelectric photometer filters
Subject
Astronomy
Optical instrument
Photometry
Optical instrument
Photometry
Description
Wood, metal, glass
Small wooden box (4 ¾ x 2 ¾ x 2”), 11 shades, some marked .66, .86, 1.31, 1.56, 1.80, 2.95, 4 unlabeled. Possibly 1917.
Made reference to use of shades in several papers including Nova Aquilae and Algol (1921).
Small wooden box (4 ¾ x 2 ¾ x 2”), 11 shades, some marked .66, .86, 1.31, 1.56, 1.80, 2.95, 4 unlabeled. Possibly 1917.
Made reference to use of shades in several papers including Nova Aquilae and Algol (1921).
Creator
Unknown
Publisher
Astronomy Department, University of Illinois, Urbana, Illinois
Date
circa 1917
Contributor
Michael Svec
Rights
Copyright Michael Svec
Format
image/jpg
Language
English
Type
physical object
Identifier
University of Illinois Observatory Collection A210
Coverage
University of Illinois Observatory, Urbana, Illinois
Files
Collection
Citation
Unknown, “Photoelectric photometer filters,” University of Illinois Observatory Collection, accessed April 18, 2024, https://uiobservatory.omeka.net/items/show/24.