Photometer

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Ingenium, 1993.0288.001
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OBJECT TYPE: OPTICAL/PHOTOELECTRIC
DATE: 1960–1962
ARTIFACT NUMBER: 1993.0288.001

MANUFACTURER: DUNLOP, DAVID OBSERVATORY SHOPS
MODEL: Unknown
LOCATION: Richmond Hill, Ontario, Canada

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: ALUMINUM, BRASS, GLASS LENSES, GLASS FILTERS

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 37.0 cm
Width: 18.0 cm
Height: 45.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Astronomy
Category: Research
Sub-Category: N/A

Manufacturer

AKA: Observatory CA
Country: Canada
State/Province: Ontario
City: Richmond Hill

Context

Country: Canada
State/Province: Unknown
Period: FROM CIRCA 1960 TO 1976
Canada: USED FOR TEACHING GRADUATE STUDENTS BY THE PRIMARY ASTRONOMICAL TEACHING INSTITUTION IN CANADA (U OF T) & THEN TRANSFERRED TO A SMALL, NEWLY FORMED DEPT. AT SMU IN HALIFAX.
Function: USED TO MEASURE THE BRIGHTNESS OF STARS, GALAXIES AND OTHER ASTRONOMICAL BODIES WITH GREAT ACCURACY [CURATOR'S WORKSHEET].
Technical: TYPICAL ASTRONOMICAL RESEARCH INSTRUMENT OF THE MID-20C. FIRSTSUCH INSTRUMENTS APPEARED NEAR THE BEGINNING OF THE C & HAD REACHED A REASONABLE DEVELOPMENTAL STATE BY 1930. WERE SUPERCEDED BY CCD DETECTORS IN LATE 1970'S & EARLY 1980'S. [REF 1]
Area Notes: Unknown

Details

Markings: DYNOTAPE LABELS READ: 'CLOSED OPEN SOURCE/ DIAGONAL/ USE BOTTOM/ APERTURE/ SIGNAL/ CATHODE/ DARK SLIDE'/ PRINTED ON SIDE WHEEL: '1' [TO] '8'
Missing: From CA of 01/14/2002 by Matthew Bruce: No - appears complete
Finish: CASE: GREY HAMMERLIN FINISH; BLACK & WHITE PRINTING
Decoration: N/A

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DUNLOP, DAVID OBSERVATORY SHOPS, Photometer, circa 1960–1962, Artifact no. 1993.0288, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1993.0288.001/

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