Dear Josef and dialling colleagues, Thank you for this most interesting information. I actually made a satellite dish sundial in 1999. The story was published in the British Sundial Society Bulletin, 11(ii), pp.77-80 (June 1999). I even used the same motto - Carpe Diem - as is on one of the two commercial versions. I should have patented the idea! I believe the commercial dials probably have adjustable gnomons. Whilst the hourlines should also change with the location of the dial and which satellite it is aligned to, it probably is not too inaccurate to have a fixed set of lines for a small geographic area. One of the advantages of the geostationary orbits of broadcast satellites is that they are mainly in quite a small portion of the sky. I would be most interested in any further information you can obtain from the manufacturers. Regards, John Davis -----------------------------
Dr J Davis Flowton Dials --- On Thu, 27/11/08, Josef Pastor <[EMAIL PROTECTED]> wrote: From: Josef Pastor <[EMAIL PROTECTED]> Subject: Satellite Antenna Sundial To: "'Sonnenuhr (Uni Köln)'" <[email protected]> Date: Thursday, 27 November, 2008, 11:51 AM Dear Dialists, the "German Satellite TV Sets - producer" FUBA from Muenster/Westphalia offers actually a special edition of "parabolic sundial satellite antennas". Two versions are available. These have an diameter of 85 cm. For the technical details look at: http://shop.fuba.de/index.php?cat=c1816859_85-cm-Klasse.html #yiv39947952 st1\:* { } _filtered #yiv39947952 { font-family:Wingdings;} _filtered #yiv39947952 { font-family:Comic Sans MS;} _filtered #yiv39947952 { font-family:Wingdings 2;} _filtered #yiv39947952 {margin:70.85pt 70.85pt 2.0cm 70.85pt;} #yiv39947952 P.MsoNormal { FONT-SIZE:12pt;MARGIN:0cm 0cm 0pt;FONT-FAMILY:"Times New Roman";} #yiv39947952 LI.MsoNormal { FONT-SIZE:12pt;MARGIN:0cm 0cm 0pt;FONT-FAMILY:"Times New Roman";} #yiv39947952 DIV.MsoNormal { FONT-SIZE:12pt;MARGIN:0cm 0cm 0pt;FONT-FAMILY:"Times New Roman";} #yiv39947952 P { FONT-SIZE:12pt;FONT-FAMILY:"Times New Roman";} #yiv39947952 SPAN.SpellE { } #yiv39947952 DIV.Section1 { } Best regards Josef Pastor _______________________________________ --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
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