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VERTICAL SUNDIAL ON NEW MILLS TOWN HALL
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Photo taken 15 September 2011 A new sundial dedicated to Sir Martin Doughty was unveiled in the town of New Mills on the 11th of October 2009.

Around the perimeter of the dial is engraved the following.

"AN EXCEPTIONAL NEW MILLS MAN WHO LOVED KINDER AND THIS SPECIAL TOWN PLACED UNIQUELY ON THE 2° WEST LINE THE CENTRAL MERIDIAN
A MAN WHO ACHIEVED SO MUCH IN THE TIME HE WAS GIVEN"

Sir Martin Doughty was the father of modern conservation and founding chair of the Natural England organisation, the government's adviser on the natural environment.

He died on the 4th of March 2009, and would have had his 60th birthday on the day the sundial was revealed to the throng of walkers and fell runners who had gathered to celebrate his life.

The slate dial is mounted on a corner wall of New Mills town hall.

New Mills is a former small cotton town on the north western fringe of the Peak District about eight miles east of Stockport.
It has an interesting site astride the River Goyt at its confluence with the River Sett, both rivers being deeply incised into an impressive sandstone gorge about 30m deep.

blueline

New Mills town hall This picture was taken shortly after the unveiling ceremony, and shows how the dial is positioned.

The meridian of 2 degrees longitude west passes through the town hall, and the dial is compensated for the 8 minutes discrepancy between local and Greenwich mean time.

The dial is not direct south facing, but is rotated one degree from south facing towards the east.

The slate dial was made by Letter Cutter John Shaw, and the dial calculations were carried out using the vertical sundial Calculator that is part of this web site.

Normally the values input to the calculator to obtain the dial shadow angle markings are 15 (degrees) for each hour, (1pm=15, 2pm=30 etc).

As the longitude is 2 degrees west, the input values were adjusted as follows:- For the west (am) face 2 was added to the angles, so the hours were input as 17, 32, 47 etc, and for the east (pm) face the input values were 13, 28, 43 etc.
The effect being to rotate all the hour shadow angles clockwise to compensate for the 8 minute longitude effect.

The calculations also accounted for the fact that the dial is rotated from south facing by inputs of 89 and 91 for the gnomon side angles.

LOCATION

Lat 53° 22' 04" N
Lon 2° 00' 01" W
OS SK 000 857