History

A design of azimuth sundial to go in a garden

Azimuth sundial on 10 October at 11.10am

On 10 October the autumn equinox has passed and the cursor reading point has moved out from the inner circle of the dial towards winter solstice at the circumference. The sighting arm carries a short vertical gnomon which casts its shadow in line with the sun.

The azimuth sundial is an intriguing instrument. It finds the time from the direction of the sun. This idea sounds simple, the sun rises in the East, at Noon it is due South, and it sets again in the West, but it is complicated by the time of year. This note is about a new design for a precision azimuth sundial to go in a garden. Continue reading

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A modern altitude sundial after Erasmus Habermel

A modern circular altitude sundial after Erasmus Habermel of Prague

Modern reconstruction of a 16th century altitude sundial for studying its mathematics and accuracy. An altitude dial uses the height of the sun to find the time. The dial is double-sided with the two half-years back-to-back.

Erasmus Habermel was a renowned scientific instrument maker working in the court of Emperor Rudolf II in Prague in the 16th century. He made instruments for all disciplines including astronomy and navigation. One of his sundials is an altitude dial in the clocks collection of the Augustine Museum in Freiburg im Bresgau*. It is an elegant circular dial and the mathematical construction is intriguing. Continue reading

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North alignment on a Victorian pedestal

Sun direction measured with an angle finder

The direction of the sun measured against one edge of the octagonal stone pedestal using the angle finder and light slit

A Victorian sundial pedestal stands in the gardens of Riccarton estate outside Edinburgh. It once held a beautiful octagonal dial which is now in safe storage. A replacement dial is to go on show and it must be in a correct orientation. The gnomon on a sundial must point north. A wrong alignment will make the sundial inaccurate, and nothing on the 19th century pedestal actually marks the north. Continue reading

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Historic Scottish Stone Sundial Restored

Scottish stone sundial restored

The octagonal base and baluster shaft support a carved cube stone. Before restoration the stones were covered in moss lying on the ground in the owner’s garden. The bronze horizontal dial is new.

Stone sundials were common in Scotland in the 17th and 18th centuries. They stood in the gardens of great houses, and in public places. The geometric form of the sundial would reflect the popular interests of the day in science and mathematics, and many displayed complex multiple dials. Originally this particular sundial may have belonged to a country estate near Falkirk. The present owner has had it for many years and in 2023 decided to restore it. Continue reading

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An 18th century horizontal garden sundial

A beautiful 18th century horizontal garden sundial

A historic horizontal bronze garden sundial, 1723

A fine 18th century horizontal sundial stands in the gardens of the House of Dun near Montrose. The dial is octagonal made in bronze set in a carved and moulded stone raised on a baluster pedestal and stone step. Elegant tracery scroll work supports the gnomon.

The dial engraving is detailed employing delicacy of variation in deep and light incisions and ornament. The chapter ring carries exact time divisions down to a single minute. Continue reading

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Wall sundial at Royal Square in St Helier, Jersey

Wall sundial at St Helier, Jersey

Wall sundial in Royal Square at St Helier, Jersey, Latitude 49.1839° N, Longitude 2.1057° W. The inscription reads: REGULATE YOUR CLOCKS BY THE SUN DIAL. CORRECTION MUST BE MADE FOR THE EQUATION OF TIME WHICH IS GIVEN IN ALL THE ALMANACKS.

This beautiful sundial is set into the wall of the old Picket House in Royal Square, St Helier, Jersey. Historical records show it was made by a talented Jerseyman called Elias Le Gros in the 1820s. In spite of being plastered over at one time by the military authorities and then restored again in 1875 after a public outcry over the dial’s obliteration, it is now in excellent condition, as our photo shows. Our host for lunch that day told us: “The dial is much admired but of course it isn’t accurate.” Poor old Elias Le Gros, now was the time to rescue his reputation! Continue reading

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A first sight of the sundial at Lews Castle

A first sight of the Lews Castle sundial

A first sight of the Lews Castle sundial at Stornoway, Isle of Lewis. This was a restoration we completed in 2020.

The sundial at Lews Castle, which overlooks Stornoway harbour on the Isle of Lewis, Scotland, is a restoration of a piece of nineteenth century garden furniture. The cast iron pedestal was once the base of a water fountain that stood in the castle grounds. In 2019 work started on a major Castle Grounds Regeneration Project, which included the pedestal. This ornate piece would be restored as a sundial. The Stornoway Trust had a special wish to see a timeline history of the Lews estate written on the dial. Continue reading

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The Sandford Fleming sundial memorial nears completion

The Sandford Fleming sundial memorial nears completion

The Sandford Fleming sundial memorial nears completion now the paving is laid. The memorial is on Kirkcaldy waterfront at the end of the High Street.

The Sandford Fleming sundial memorial nears its final phase of completion. The bonded resin paving surface has now been laid. Its creamy colour sets off the brown Corten weathering steel of the sundial extremely well, and it frames the oval shape, which represents Sandford Fleming’s main idea of a system of time that embraces the whole of the world. The sundial is furnished with brief text panels for explanation, and a new information board is on its way.

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Sundial memorial to Sir Sandford Fleming in Kirkcaldy

Sundial memorial to Sir Sandford Fleming

This is the analemmatic type of sundial that lies flat on the ground and the person casts the shadow to show the time.

The coastal trading and industrial town of Kirkcaldy in Fife, Scotland, was famous up to the 1960s for its linoleum. In an earlier age, Adam Smith the 18th century economist and author of The Wealth of Nations was born in the town. Sandford Fleming was born in Kirkcaldy on 7 January 1827. He pioneered the changes to standard time and time zones for the whole world. Continue reading

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Sundial restoration at Butterton church turns up a mystery engraving

Brass sundial plate turned over and showing engraved writing on the back

The engraving looks like Gothic script but we didn’t know how to read it. We do hope to learn more about this extraordinary discovery on the back of a brass sundial. So far it has proved a mystery.

The Church of St Bartholomew in the lovely Staffordshire village of Butterton in the Peak District stands on high ground. Its tall spire is visible for miles around. Just near the church’s south porch there is a sundial. The sundial pedestal may once have been part of a medieval stone cross, and the dial made of brass Continue reading

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