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Star Magnitude Visibility Map

Star Magnitude Visibility A composite road map with a stellar visibility limit sky brightness map superimposed. Showing the darkest region of the Cotswolds, relevant to the following frames. The area is surrounded by the cities of Bristol, Cheltenham and Swindon, all beaming light into its skies. This work is based on visibility limits by P Cinzano etanmd F Falchi (ISTIL). in collaboration with Phillips maps, and will be published commercially by Philips (2004 Sept), for the Campaign for Dark skies. This map shows the minimum magnitude of stars which can be seen across the Worcester environs. West of Hereford appears to be significantly better than Worcester or the Malvern Hills. But even here the minimum visibility is well above the 6.0 which is said to be the limit of the human eye.

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