Lens, telescope

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Ingenium, 1970.0217.012
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OBJECT TYPE: N/A
DATE: Unknown
ARTIFACT NUMBER: 1970.0217.012

MANUFACTURER: Troughton & Simms
MODEL: Unknown
LOCATION: London, England

More Information

General Information

Serial #: N/A
Part Number: 12
Total Parts: 21
AKA: N/A
Patents: N/A
General Description: METAL & GLASS

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: Observation equipment
Sub-Category: N/A

Manufacturer

AKA: Troughton Simms
Country: England
State/Province: Unknown
City: London

Context

Country: Canada
State/Province: Ontario
Period: PROBABLY FROM 1905 (OR EARLIER) TO 1956 OR 1957
Canada: USED AT THE DOMINION OBSERVATORY IN OTTAWA.
Function: Unknown
Technical: TYPICAL ASTRONOMICAL TRANSIT BY PREMIER ENGLISH MAKERS/ WOULD BE OF SECONDARY LEVEL ACCURACY - LIMITED MAINLY BY THE FOCAL LENGTH, THE ACCURACY OF THE STRIDE LEVEL, CARE TAKEN TO ALIGN BASE & THE NUMBER OF STELLAR TRANSITS OBSERVED/ PERSONAL EQUATION ERRORS NEEDED TO BE KNOWN & APPLIED
Area Notes: Unknown

Details

Markings: ON CAP '120'/ WHEELS MARKED FROM 0-180 WITH CALIBRATIONS EVERY 1/2 DEGREE ON ONE WHEEL & EVERY 1/60TH ON OTHER/ SCALES MARKED FROM 0-20 WITH DIVISIONS WITHIN/ CASE STENCILLED 'OTTAWA', LABEL ASTRONOMICAL/ INSTRUMENTS/WITH CARE'. Handwritten 'Troughton/ &/ Simms/ (telescope)'
Missing: N/A
Finish: BRASS COLOUR & BLACK WITH CLEAR LENSES
Decoration: N/A

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

Troughton & Simms, Lens, telescope, Unknown Date, Artifact no. 1970.0217, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1970.0217.012/

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