Hi Alexei,
It is not a good idea to wrap a south facing dial around a cylinder.
That will not work properly.
Any straight line on a plane southdial will change into a curved line on a
cylinder.
So you have to calculate more the 2 points to draw a line.
For local suntime, with or without
John Carmichael wrote:
My new Celestial Products moon calendar says that there will be a total
lunar eclipse at 4:41 UT on January 21 (the evening of Jan. 20th in North
America).
We have already discussed on the list the fact that moonlight should
indicate the correct time on a sundial during
Hello dialists:
My new Celestial Products moon calendar says that there will be a total
lunar eclipse at 4:41 UT on January 21 (the evening of Jan. 20th in North
America).
We have already discussed on the list the fact that moonlight should
indicate the correct time on a sundial during
