Telescope Meeting South

Römerstein-Böhringen, Swabian Jura, South Germany, 770 m

Date:	26.04.2025	Time:	23:05 UTC
Exposure:	10 x 13 s, 11 x 30 s	Fiel of view:	360° x 180°
Camera:	Lumix S5IIX	Optics:	18 mm f/2.0
Place:	Römerstein-Böhringen, South Germany	Observer:	Till Credner

Astronomical observations were possible in the third night of the Telecope Meeting South. The brightness in the zenith was 20.78 mag/arcsecond² at the time of the above view. This is quite bright because of light pollution and the Cirrus clouds. The sky brightness went down to 21.33 mag/arcsecond² in the clear morning hours between 3 and 4 CEST (2 and 3 CET). This is 1.85 more bright than a natural clear and moonless sky. A factor of 1.85 means the sky is brightened by 85 % by the light pollution mainly from Stuttgart and Ulm.

Measurements were obtained with SQM-LU-DL, serial number 2030.

Sun?