Thanks you all for your contributions on my request about meridian
dials. If you know more
(curious or rare ones, for instance) they'll be welcome.
By the way, have these dials been built in other temples than Catholic
ones? Do you know about Mosques,
buddist or other religions themples having meridian lines? And what
about civil buildings?
As regards to the dimensions of the 'pin'-hole, I haven't found any
reliable guideline except that from
Fantoni's book: the hole's plane should be perpendicular to the point in
the meridian line which is
equidistant from both solsticial points.
Makbe the discussion we held last year on pinhole cards should cast some
light on this topic...
Best regards,
Anselmo Perez Serrada
-
