Lantern slide "Counting Machine"

Title

Lantern slide "Counting Machine"

Subject

Astronomy
Photography
Measuring instrument

Description

Lantern slide of the Observatory's counting machine. This piece of equipment was used by the third director, Robert Baker, to analyze photographic plates of the Milky Way during his research 1938-1951. The lantern slide is part of the Observatory's lantern slide collection and is labeled "PE 24."

Publisher

Astronomy Department, University of Illinois, Urbana, Illinois

Date

circa 1940

Format

still image

Language

English

Coverage

University of Illinois Observatory, Urbana, Illinois

Original Format

lantern slide

Physical Dimensions

3 1/4 x 4 inches

Files

countingmachine.jpg

Collection

Photographs

Tags

Citation

“Lantern slide "Counting Machine",” University of Illinois Observatory Collection, accessed April 26, 2024, https://uiobservatory.omeka.net/items/show/45.