Greenwich Longitude adjusted Horizontal Sundial

'Greenwich" Longitude adjusted horizontal sundial

Stephen Holehan Sundials ™


"Greenwich longitude adjusted"

Horizontal sundial

This sundial is ideal for those requiring an accurately calculated site specific sundial that can give clock time with a little mathematical application, a sundial for the connoisseur. It will require a very accurate location data in term of Longitude and latitude, The more precise the location is pinpointed the more precise the sundial will be.   Stephen can help you in obtaining this.

Single line of 12 mm text 50 letters and spaces. Stephen squeeze in 2 lines of smaller text.

Please see images above for how this can be varied. Can be made Round or Octagonal.


The chapter ring  (clock) face reads “Greenwich “ adjusted time. The gnomon shadow will be on 12 noon when the sun passes over the Greenwich meridian( 0 degrees) When the shadow is covering the engraved diamond this will mark “Local apparent noon” which will be fast if the dial is in the east and slow if the dial is westerly of Greenwich. Using the Equation of time graph it is possible to calculate “Clock” time.

 These dials are functioning scientific instruments, Individually calculated and   mathematically correct to exact location.

Personalised engraving and pre manufacture approval artwork for your peace of mind.

SIZE 250mm (9  3/4")diameter         

£302.00

Can be made Octagonal

250mm (9 3/4")across flats             

£302.00 

Full solar  alignment and installation instructions supplied.

Available as circular or octagonal.

Includes UK standard mainland Parcel Force 48hr shipping and packaging  Zone 1 - England, Wales & Scotland (excluding Highlands & Islands)
Weekend delivery and other areas  please request a quote.

Back to Horizontal Sundials How to order this sundial

Dear Stephen,

 "The sundial arrived on friday and is magnificent, thank you" anon


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