The Dutch Observatory

December 16, 2014 on 10:57 am | In Outreach, Sun | Comments Off

OK this week it is time to remove the pinhole cameras if you obtained one earlier this year, or if you made one yourself to generate a Solargraph.  Between now and the 21st, the Sun will only drop another 5 seconds which is only 1/6 of the dot that the Sun generates on the photo paper.  Here is the Solargraph made from my deck behind my house between the Summer Solstice and today.  The washed out areas on either side are created by small trees obstructing the Sun.  The dark area on top of the image is the canopy of a 70′ tree at the side of the deck that obstructs the sun in the summer months from above.