So. a hippodrome is where the horses run (the racetrack), and a heliodrome is where the sun runs? That is nice; I like it.
Rudolf Hooijenga 52-30N 4-40E Van: sundial <sundial-boun...@uni-koeln.de> Namens fabio.sav...@nonvedolora.it Verzonden: zondag 17 maart 2019 20:17 CC: sundial@uni-koeln.de Onderwerp: Heliodrome Dear Frank [.] The light brown area is the heliodrome of the sundial because it is where one can read the Sun projection. The shadow of the gnomon (its edge) cannot leave the heliodrome. [.]
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