This dial was designed with the intention of being principally a moon dial. It is over the doorway of a house extension and is a partner for a big vertical sundial I made for the client some years ago. It is direct east facing, made in Witton Fell sandstone from Yorkshire. The nodus star is based on that on Albi Cathedral’s direct east and west-facing dials. The spot of light passing through a hole in the centre of the star indicates local apparent time and date. Use of the Equation of Time given on a correction chart inside the porch below the dial enables mean time to be worked out, but an additional chart allows the much bigger lunar corrections of hours and minutes to be made for one week each side of full moon. The silver-painted moon on the dial has some of the larger craters and maria marked out.
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