Re: Analemmic-equatorial dials

Dear Pete, Thanks for your e-mail concerning the formula used in your analemmic-equatorial sundial. Indeed, for the real dial the error is negligible. Merry Christmas and a Happy New Year. Fer.

Re: Analemmic-equatorial dials

Dear Fer: Thank you, and you are indeed correct. The formula I should have used for calculating the shape of the analemmic cutout is yi = r * cos(ai) * tan(bi) , rather than just yi = r * tan(bi) . I should attempt to deceive everyone by stating that as an Engineer, I anticipated that the