File:Smithsonian Institution Archives - 96-960.jpg

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Summary

Description	Afrikaans: Vrywillige satelliet-opspoorders in Pretoria, Suid-Afrika, beman Smithsonian Astrophysical Observatory se Moonwatch Network, een van meer as 100 spanne wêreldwyd. Vrywilligers het die lugruim deur middel van die "heiningmetode" gefynkam. Elke waarnemer het 'n klein, oorvleuelende segment van 'n spesifieke lugkwadrant beskou, en vir die oorgang van die satelliet in sy teleskoopbeeld gekyk. Die aangewende instrument was die Moonwatch Apogee Scope, 'n 20-vergrotingteleskoop met 'n 5-duim-objektieflens. Die Moonwatch-spanne het 'n optiese netwerk van 12 Baker-Nunn-opsporingskameras gerugsteun. English: Volunteer satellite trackers in Pretoria, South Africa, for Smithsonian Astrophysical Observatory's Moonwatch Network, one of more than 100 teams worldwide. Volunteers used the "fence method" of observing the sky. Each observer covered a small, overlapping portion of a specific sky quadrant, and watches for the passage of the satellite in his telescope. The instrument used was the Moonwatch Apogee Scope, a 20 power telescope with a 5-inch objective lens. The Moonwatch teams backed up an optical network of 12 Baker-Nunn tracking cameras. Full description
Date	1965
Source	Smithsonian Institution Archives
Author	Smithsonian Institution Archives

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