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Ingenium, 1982.0636.002
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OBJECT TYPE: N/A
DATE: 1966
ARTIFACT NUMBER: 1982.0636.002

MANUFACTURER: LABRECQUE, J.L.
MODEL: Unknown
LOCATION: Ottawa, Ontario, Canada

More Information

General Information

Serial #: N/A
Part Number: 2
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: Paper and cardboard drawing

Dimensions

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

Length: N/A
Width: N/A
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

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

Manufacturer

AKA: LABRECQUE
Country: Canada
State/Province: Ontario
City: Ottawa

Context

Country: Canada
State/Province: Ontario
Period: ca. 1968 - 1992
Canada: MADE BY HEAD TECHNICIAN AT THE DOMINION OBSERVATORY; BELIEVED TO BE THE FIRST OF ITS TYPE IN CANADA.
Function: Unknown
Technical: REFLECTING TELESCOPE WHICH USED MAKSUTOV OPTICAL DESIGN - BY THE RUSSIAN OPTICAL ENGINEER DMITRI MAKSUTOV IN 1941. THEY USE A SPERICAL MIRROR & CORRECTOR LENS WITH SPHERICAL SURFACES.
Area Notes: Unknown

Details

Markings: There is an equation in pencil in the top proper right corner (not very clear, transcription is uncertain): "2c=5/4(TF-32)"/ In pencil near the centre top: "Guido"/ In blue ink in top centre: "MAKSUTOF-CASSEGRAIN f/15.4"/ In bottom proper left corner: "NOV. 1966/ J. Labrecque (signature)"
Missing: Appears complete
Finish: Light brown paper drawing on a brown cardboard backing. The drawing is predominantly grey pencil with some blue ink with some blue ink markings at the top. There are blue and brown drips or splashes on the proper front of the drawing.
Decoration: N/A

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If you choose to share our information about this collection object, please cite:

LABRECQUE, J.L., Drawing, circa 1966, Artifact no. 1982.0636, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1982.0636.002/

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