Dear Fernando,
I had a similar problem making a dial for 'the tropics'. It was
to sit beside the pool at a hotel that we use in The Gambia, 13°N. The
intention was to make it visible all day from a laying-down position.
in The Gambia as in Brazil, the sun goes both to the North and to the
South at various times of the year. Also the only sensible position for
it was to the South of the pool.
My solution was to make a horizontal dial for 45°N. At latitude
13°, this meant that it was inclined 45-13=32 degrees. It worked out
quite well. The intention was to give some indication of time to people
who really didn't care too much about the actual time, but they needed
to know when to order the next drink!
I made a cardboard prototype, but sadly the hotel management
never took up the idea.
Good luck with yours.
The Eclipse. As you probably know it was a bit of a washout in
the area of totality, but we here in Cambridge, UK, were able to stand
outside and got a fairly good 90% view through broken cloud.
Regards,
Mike Cowham.
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