General Information

Serial #

N/A

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

METAL (IRON, BRASS & OTHER), GLASS, SYNTHETIC & CERAMIC

Dimensions

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

Length

236.0 cm

Width

138.0 cm

Height

132.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Astronomy

Category

Observation equipment

Sub-Category

N/A

Manufacturer

AKA

Brashear

Country

United States of America

State/Province

Pennsylvania

City

Allegheny

Context

Country

Canada

State/Province

Ontario

Period

1905-C.1960 - WAS REPLACED WITH SOLAR CAMERA ON 15 INCH REFRACTOR

Canada

FIRST INSTRUMENT IN CANADIAN GOVERNMENT SERVICE DEVOTED TO SOLAR OBSERVATION - AN AREA OF RESEARCH AT DOMINION OBSERVATORY & NRC UNTIL DECOMMISSIONING OF ORSO TELESCOPE IN 1992

Function

TO PROVIDE A STATIONARY SOLAR IMAGE FOR OBSERVATION/ A MIRROR DRIVEN BY A CLOCK MECHANISM TO ROTATE FROM EAST TO WEST ABOUT AN AXIS PARALLEL TO THE EARTH'S ROTATIONAL AXIS ALLOWS THE SUN'S IMAGE TO APPEAR TO REMAIN STATIONARY, A SECONDARY MIRROR NORMALLY REDIRECTS THE LIGHT BEAM TO WHEREVER IT IS DESIRED

Technical

DESIGNED BY J.S. PLASKETT, WHO BECAME ONE OF CANADA'S PRE-EMINENT ASTRONOMERS [REF.7]/ BRASHEAR & WARNER & SWASEY WERE PREMIER AMERICAN TELESCOPE MAKERS AT BEGINNING OF CENTURY

Area Notes

Unknown

Details

Markings

CAST IN 'JOHN A. BRASHEAR CO. LTD./ ALLEGHENY, PA'

Missing

From CA of 11/08/2001 by David Daley: Undetermined - unknown, artifact in a state of disassembly, stored in various locations.

Finish

PAINTED WHITE, CARRIAGE PAINTED BLACK, WITH BLACK, SILVER & BRASS-COLOURED PTS

Decoration

N/A