Dear Dialists
I can point out that my Wenger Sundial does show hours of sunlight. Once
the position of the sun is found on the globe the declication of the sun
has been found. Then by following
the path of the sun during the day, keeping the declination constant, and
going from the eastern
At 07:14 AM 9/1/99 -0400, Mac Oglesby wrote:
I wonder what it would take to make it a sundial showing hours until dark.
That is, how would the time of dark (relative to sunset) be determined?
Hi Mac,
This is an excellent challenge.
First, we have to define dark. Bowditch defines Civil
At 07:14 AM 9/1/99 -0400, Mac Oglesby wrote:
If I was ever aware of a sidereal time option suggested by Karl
Schwarzinger, I've forgotten the details. Can you refresh my memory? Of
course, one could simply label a normal hours to sunset sundial as
showing sidereal hours to sunset, since the
