Today, the Astronomy Picture of the Day features a so-called “solargraph“. A 6 months exposure time pinhole picture:
During 6 months the tiny pinhole records the path of the Sun on the sky, revealing the seasonal changes.
Actually, this picture is part of a global initiative to create solargrpahs. From the Solar TG we encourage everyone to construct this easy device and create your own picture.
That is one of the best artistic images I’ve ever seen for astronomy. Very nice!
By: Helio George on January 19, 2009
at 6:21 pm
This image should be sent to APOD.
By: Helio George on January 19, 2009
at 6:22 pm
Hi George. It is APOD. I actually took it from there.
Greetings.
By: solarastronomy2009 on January 19, 2009
at 6:33 pm