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Published on Mar 9, 2012
The awkward truth about the effectiveness of setting circles fitted to small telescopes. Erratum: The scale of the AA road map referred to is in fact 1:50,000 and not 1:500. So what's another 49,500 between friends? RJD
Presented by Robert J Dalby
for The Astronomy and Nature Centre
Produced by DB Video Services for Astronomy and Nature TV