|The ideal exposure periods|
This depends totally upon yourselves. The shortest exposure time is one day and the longest half a year. The deciding factors are the winter and summer solstices. In the northern hemisphere the Sun´s altitude (its speak) is reached in midsummer on June 21st and after that it starts its descent day after day. The Sun is at the lowest in December. In this project you may see solargraphs with different exposure times.
Using solstices (peaks) and equinoxes as Middle Season
- December 21st or 22nd - March 20 or 21st
- March 20th or 21st - June 21st
- June 21st - Sept 23rd or 22nd
- Sept 23rd - Dec 22st