Type Armillary spheres
Materials Bronze
Installation Plinth mounted
Dimensions (mm) 500-1500mm dia.
 
 

First used by the ancient Greeks as an aid to astronomy, the modern armillary sphere is an easy-to-use sundial that provides users with a gateway to gnomonics (the science of dialling), as well as serving as a visually striking feature in a garden.

Because of its unique shape, this instrument marks time in a purer way than other sundials, the hour divisions being spaced equally along its equatorial ring.

The bronze armillary sphere is constructed from robust bronze bars 6mm thick and up to 50mm wide. These are engraved and polished before being riveted together with specially formed brass rivets, which are invisible to the eye when finished. 

Design

  • Available in diameters from 500-1500mm.
  • Bronze is very hardwearing and will develop a verdigris patina over time.
  • 10mm round bronze bars are used for tropic and polar rings and for the central gnomon.

Optional extras

  • Arrowhead and flight - the arrow is part of the sundial's gnomon and the head of the arrow points to the pole star when the sundial is properly aligned.
  • Ecliptic ring - can be engraved, eg with the symbols of the zodiac.
  • Nodus - a bronze ball is placed on the gnomon and positioned so that its shadow appears on the hour ring on a particular day of the year to mark special occasions such as birthdays or anniversaries.


First used by the ancient Greeks as an aid to astronomy, the modern armillary sphere is an easy-to-use sundial that provides users with a gateway to gnomonics (the science of dialling), as well as serving as a visually striking feature in a garden.

Because of its unique shape, this instrument marks time in a purer way than other sundials, the hour divisions being spaced equally along its equatorial ring.

The bronze armillary sphere is constructed from robust bronze bars 6mm thick and up to 50mm wide. These are engraved and polished before being riveted together with specially formed brass rivets, which are invisible to the eye when finished. 

Design

  • Available in diameters from 500-1500mm.
  • Bronze is very hardwearing and will develop a verdigris patina over time.
  • 10mm round bronze bars are used for tropic and polar rings and for the central gnomon.

Optional extras

  • Arrowhead and flight - the arrow is part of the sundial's gnomon and the head of the arrow points to the pole star when the sundial is properly aligned.
  • Ecliptic ring - can be engraved, eg with the symbols of the zodiac.
  • Nodus - a bronze ball is placed on the gnomon and positioned so that its shadow appears on the hour ring on a particular day of the year to mark special occasions such as birthdays or anniversaries.