Re: Hemicyclium correction

2017-10-18 Thread Michael Ossipoff
Brad-- > > If the inside surface is marked with the lines analogous to lines of > longitude on a globe spaced 15 degrees apart, radiating from the “pole” of > the hemicyclium, and the entire device is tilted to align with the earth’s > axis, would it then read out in Local True Solar Time? >

RE: Hemicyclium correction

2017-10-18 Thread Brad Thayer
Michael, Thank you for the lengthy response. This will actually be the fifth sundial I have completed (and the 6th that I have started). I’ve already made a band-equatorial (using “Mayan digits”), two analemmatic horizonatal sundials, a south-facing vertical sundial, and started a

RE: Hemicyclium correction

2017-10-18 Thread Brad Thayer
Frank, Thank you for the tutorial. I believe I followed all the logic and steps. However, its your step 19 I am interested in. Any suggestions as to how to mark the inner surface with equal duration hours throughout the year? And if I do tilt the hemispherium so that the horizon line is now

Re: Hemicyclium correction

2017-10-18 Thread Michael Ossipoff
When I have a clock and not a sundial, clock time has to be converted into sundial time (Local True Solar Time) to make it day-relevant. So, if you make a sundial, shouldn't it just show sundial time? Isn't that really what a sundial for--showing Local True Solar Time? You could make a