Orion Armillary Sphere

'Orion' Armillary Sphere (Globe)

Stephen Holehan Sundials ™


"Orion" Armillary Sphere, with polar and tropic rings.


Personalised engraving.


500mm diameter sphere;

Up to 60 Letters & spaces to front half of horizontal ring @ 15mm text height £ included

Up to 40 letters & spaces to equatorial ring @ 12mm text height + £45.00

Inside rear of Horizontal ring, Longitude and Latitude 12mm text height     £ inc

It is also possible to do 2 lines of text on the horizontal ring at a text height of 12mm.

Text on horizontal ring can be increased a little by reducing text size.

See image for text placement.

The “Orion” Armillary Sphere is a ring mounted dial of complex design featuring a full equatorial band and 4 rings marking the tropics of Capricorn & Cancer and arctic / antarctic circles.   Made as standard with a plain rod gnomon but has the option of the addition of an  “Arrow head and fletch“  (needs a narrow plinth for 55 degrees of latitude and above if fitted with arrow point and fletch)

The equatorial ring has a wide (38mm) dual time band showing Roman numerals for UTC (gmt in UK) and standard numerals for British Summer time.  Includes  personalised engraving of your choice around the outside of the wider horizon ring (38mm)and smaller text to the equatorial ring if required.(small additional cost £45.00) Individually made to site specific latitude and supplied with full installation and alignment instructions.


Orion Sphere  Size 500mm globe - 530mm tall 

Standard design has a plain gnomon with nodus ball   

PRICE £1250.00

Or add Standard Arrow point and fletch to gnomon, see note below     

 Add  £45.00 

Please ask about this if your Sphere is set to 54 degrees of latitude or above, as you will need a narrow topped plinth.

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

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 Armillary Spheres How to order this sundial

Dear Stephen,

Just to say thank you for all your help in 'talking' me through buying the armillary. It was delivered today - all safe and sound. Dave, my partner, is very pleased with his 70th birthday gift. He has been very admiring not only its beauty but of the way it has been built - the thickness of the brass, the neat screws and joints, the little touches with the discs on the side. Since he has designed/built a couple of barometers himself such details are important to him and noted here with pleasure and appreciation.

Kindest regards

Sue

Equation of time plate_Stephen Holehan Sundials
Longitude adjusted EOT plate copyright Stephen Holehan Sundials

Equation of time plates

 Standard & Longitude adjusted Equation of time plate.

Standard Equation of Time plate

£37.50                                       
Greenwich   Time adjustment Plate                                             
£48.00

Standard uk delivery - Free with a purchased dial

£6.00 without.


Dimensions for both plates

140mm wide 80mm tall Supplied with "Faux" Screw heads engraved for adhesive fixing or drilled with included screws.


Standard & Longitude adjusted Equation of time plate. (E.O.T.)

Armillary Spheres are set to show “Local apparent time” This is when it is said to be noon when the sun is directly overhead. ( Its highest point in the sky when directly above the position of the viewer.) Time as it used to be before Greenwich mean time was introduced to standardise time across the country- thus allowing railway timetables to be aggregated. 

The “Greenwich Time adjustment” EOT plate shows the seasonal adjustment of dial slow / dial fast, together with an adjustment for the dial’s position East or West of the Greenwich Meridian. If the dial is correctly aligned to solar noon (local apparent time)  it will then be possible to ascertain correct Greenwich mean time.(Standardised time)
[Within the limitations of reading the edge of the shadow]


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