Dear Fabio, There are several similar sundials in the Netherlands. One example can be seen at: http://www.fransmaes.nl/zonnewijzers/en/menkema-e.htm Typically, they are combined with two cubic sundials, rotated 45° with respect to another. The points of the star all form small polar dials, each covering only a couple of hours. The bottom equatorial dial has hours from 6-6 (18) hr. In my country, the top equatorial dial has hours from 4 to 8 (20). The one in Finland from 3 to 9 (21), which fits a more northern location. Not as far north as Tornio, however, which is almost at 66° North, quite close to the arctic circle.
Best regards, Frans Maes <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virusvrij. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Thu, Mar 22, 2018 at 12:44 PM, [email protected] < [email protected]> wrote: > Hi all > > I've a contact with Susanna Kuokkanen, a student of archeology of the > University of Oulu, Finland. > Oulu is quite close to the polar circle, on the gulf of Botnia. > > A star-shaped sundial was found during an axcavation for the construction > of a building in Tornio. > Tornio is just at the top of the gulf, on the border with Sweden. > Susanna sent me the photos of the sundial, you can see the card FI8 in > Sundial Atlas (www.sundialatlas.eu/atlas.php?so=FI8). > > It is an equinoctial sundial, star-shaped with 12 points, and another > sundial on its upper surface, without the gnomon. > Susanna was instructed by the university to do a research, later the > sundial will be moved to the Tornio museum. > She hasn't gnomonic notions and she found in Sundial Atlas some > star-shaped sundials and, above all, the menu 'gnomolab' where there are > many models of paper sundials. One of these, the app 7, is a star-shaped > sundial strikling similar with the find of Tornio. > I helped her to build the paper sundial for her latitude and it shows the > same indications. > In the area of Tornio there were many merchants from XVI to XVIII > centuries, it was a rich area for the fur market, and she thinks the > sundial come from another southern area, carried by one of these merchants. > > I asked her news about the basement, it'd have clarified the latitudine of > its origin, but it wasn't found. > > I'm writing a report for her with explanations how a star-shaped works but > an important point of her research is to understand the origin of the > sundial. > Have you some ideas about the probable provenance ? > > thank you, Fabio > > -- > > Fabio Savian > [email protected] > www.nonvedolora.eu > Paderno Dugnano, Milano, Italy > 45° 34' 9'' N, 9° 9' 54'' E, UTC +1 (DST +2) > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > >
--------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
