Solargraph, 22 June -
22 December 2019
I first came across the term Solargraphy on the Stargazers Lounge forum. It refers to the use of a pinhole camera to record the path of the Sun throughout the year. See Tarja Trygg's website for more information.
I used a basic pinhole camera to record, every clear day, the track of the Sun across the southern sky. The image commenced on 22 June 2019, the day after the summer solstice when the Sun at noon was at its highest altitude in the sky and finished on 22 December 2019, the winter solstice, when the noon Sun is at its lowest point. Each day during the image, the path of the Sun through the sky became slightly lower.
- duct tape,
- cable ties,
- 4 mm wood drill bit,
- black photographic film canister,
- tin foil,
- fine sandpaper,
- Ilford Multigrade IV 5"x7" photographic paper.
Given the potential for disaster during the six month exposure time, I constructed two pinhole cameras, one of which provided the image below. The other was washed out due to rain water getting in. Both were mounted on a drainpipe facing south towards a neighbour's house (the silhouette of which is visible in the image).