- catalogue number: 11.20191212;
- name of artifact: 7x50 Southern Pacific Instruments (SPI) Satellite Telescope;
- date of production: 1960s;
- materials of manufacture: optical glass, copper-alloy(?), steel, plastic(?);
- maker: made in Japan for SPI;
- provenance:
- Dave Trott;
- purchased on Astromart from Dave Trott by the DTM founder;
- condition: Good;
- notes: this is a “Moonwatch” telescope, and a relatively rare one according to Dave Trott;
- comparanda: Washington DC, National Air and Space Museum Collection, A19860036000 (downward-angled mirror type)
- literature:
- Peter M. Millman, “Meteor Magnitudes Observed in South Africa”, JRASC 55, 4 (1961 August), 195-196;
- A.F. McQuarrie, “Donation to Calgary Centre”, JRASC 55, 5 (1961 October), 236;
- Ted Molczan, “Observing Earth Satellites”, Newsletter/Bulletin The Royal Astronomical Society of Canada 1/4 (1989 August), 58-59;
- W. Patrick McCray, Keep Watching the Skies!: the Story of Operation Moonwatch & the Dawn of the Space Age (Princeton Oxford: Princeton University Press, 2008).
![DTM_ 11.20191212](https://rasc.ca/sites/default/files/dtm/SPI_Satellite_Scope.2.jpg)
![DTM_ 11.20191212](https://rasc.ca/sites/default/files/dtm/SPI_Satellite_Scope_eyepiece_%26_label.jpg)
![DTM_ 11.20191212](https://rasc.ca/sites/default/files/dtm/SPI_Satellite_Scope_altitude_circle.jpg)
![DTM_ 11.20191212](https://rasc.ca/sites/default/files/dtm/SPI_Satellite_Scope_azimuth_circle.jpg)
![DTM_ 11.20191212](https://rasc.ca/sites/default/files/dtm/SPI_Satellite_Scope_compass.jpg)
Type:
Telescope
Description:
7x50 SPI Satellite Telescope
Exhibit Number:
0011.20191212
Exhibit Name:
7x50 SPI Satellite Telescope
Production Circa:
ca.
Production Year:
1965
Exhibit Thumbnail:
![7x50 SPI Satellite Telescope 7x50 SPI Satellite Telescope](https://rasc.ca/sites/default/files/dtm/DTM-11.20191212.thumbnail.jpg)