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Panoramic View from Bollerberg

Hochsauerlandkreis, Germany, 758 m

Date:26.12.2022 Time:21:00 UT
Exposure:10 x 15 s and 11 x 30 s downward Field of view:360o x 180o
Camera:Canon EOS1D IV at ISO 3200 Optics:15 mm, f/2.8 and f/4.0 downward
Hochsauerlandkreis, Germany
Author:Till Credner

It was a cold and stormy Christmas night. The brightness in the zenith was down to 21.2 mag per arcsecond2 at about 23:00 CET, 26.12.2022 in clear patches between the brighter clouds. This is 2.1 times more bright than the natural clear and moonless sky due to light pollution. Therefore the sky is brightened by 110 % by the lights of Hesborn, Medelon, Medebach and Winterberg. A lot of light pollution is produced by the company Viessmann in Allendorf, southern direction. Measurements were obtained with SQM-LU-DL, serial number 2030.

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