Photoelectric photometer filters

Title

Photoelectric photometer filters

Subject

Astronomy
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).

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

DSCN0145.JPG

Tags

Citation

Unknown, “Photoelectric photometer filters,” University of Illinois Observatory Collection, accessed November 19, 2017, http://uiobservatory.omeka.net/items/show/24.