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Click a link below to go to:- Armillary Sundial, Armillary Spheres, Horizontal Sundials, Hand Engraved Sundials, Noon Cannons, Schools Sundial, Double Dial, Solar Timepiece, Antarctica Sundial, Favourites & Hourglass, Astrolabe, Perpetual Calendar, Moondial or Trophies Phone 072 345 5300 email sundials@sundials.co.za
Click this link to see the Solar Compass article 'The Sundial Goes To War'
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Triple Horizontal Sundial with a Nocturnal
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This 520mm diameter stainless steel sundial consists of 3 sundials and a nocturnal for telling time at night from the stars. Of course our beloved Southern Cross is one of those stars. The outer dial reads local solar time in the normal way. The oval dial to the north reads longitude corrected local solar time. It contains circles indicating solar altitude and arcs which indicate solar declination, the changes in the Zodiac and birthdays of family members, the shadow from the nodus point running along these lines on the appropriate day. The stereographic grid reads directly to South African Standard Time and tells solar altitude, solar declination and solar azimuth for every sunlit moment plus solstices, equinoxes, time of sunrise and sunset, day, date, month, season, plus solar right ascension. The Equation of Time is expressed as an integer around a calendar for each day of the year. The declination and right ascension for all stars on the nocturnal are given and when a known star is on the meridian the time at night is read against the date. Inversely, if time and date are known the navigational star on the meridian is named. All stars listed are of magnitude 2.5 and less and all are clearly visible from South Africa at various times of year.
Northern hemisphere triple dials are also offered.
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Contact Us and Order Ibis House, P. O. Box 1791, Honeydew, 2040, South Africa Since all our sundials are individually handmade they may differ slightly from those shown in this web site Web site by Tosh
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