lu.se

Lund Observatory

Faculty of Science | Lund University

Anna S. Arnadottir

Ph.D. in astronomy and astrophysics.

Solargraphing

Myself and Berry Holl requested and received some pinhole cameras from Dr. Tarja Trygg (www.solargraphy.com) in 2009 and put them up around Lund Observatory.

The images below have an exposure time of 6 months and show how the path of the sun across the sky changes from day to day as winter aproaches. During cloudy days the solar path is missing. Note how the cloud pattern is slightly different in the image taken of the Lund Cathedral compared to those taken at Lund Observatory.

Solargraphing

Solargraphing

Solargraphing

Solargraphing