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Astrolabes
Buy with confidence from Green Witch - 01954 211 288

Asineus Astrolabe 100mm Dia Asineus Astrolabe 100mm Dia Ref: LH-A204

  • ANTIQUUS
The astrolabe is a fascinating instrument, one of the earliest analogue computers. It can be used for finding the time during the day or night, finding the time of a celestial event such as sunrise or sunset and as a handy reference of celestial positions. Mastering its uses can provide hours of interest and give a better understanding of celestial mechanics.
110mm diameter, 8mm plate.  


Price:   £69.99 (Including: VAT at 17.5%)

Astrolabe 200mm Dia Astrolabe 200mm Dia Ref: LH-A206

  • ANTIQUUS
This larger astrolabe has markings which are easier to read. It looks impressive on display and is sure to excite interest. Besides their use for determining astronomical events astrolabes were used as teaching tools in the late Middle Ages.
Height 250mm, diameter 200mm, thickness 12mm  


Price:   £124.00 (Including: VAT at 17.5%)

Nautical Astrolabe Nautical Astrolabe Ref: LH-H82

  • HEMISFERIUM
This piece is a reproduction of the Nautical Astrolabe of Dundee. This marine astrolabe, made by the Portuguese, is dated between 1550-1555. Its owner, a Dundee skipper, Andrew Smyton, stamped it with both his name and date of ownership, 1688. The piece can now be found in the Art Gallery and Museum of Dundee.
The nautical astrolabe is a simplification of the planispherical or astronomical astrolabe and can only measure the altitude of the stars to calculate the latitude.  


Price:   £20.00 (Including: VAT at 17.5%)

Nocturlabe Nocturlabe Ref: LH-H24

  • HEMISFERIUM
This nocturnal watch --horologium nocturnale, noctilabium- is an astronomical instrument used to measure the time through the observation of the Pole Star and the position of bright stars in the celestial sphere.
This nocturnal is a reproduction of the one made in 1570 by Girolamo della Volpaia (History of Science Museum of Florence). Because it was made before the Gregorian reform (1582) and its creator had not very accurate calculation boards, to use this instrument correctly one must add 38 days to observation date.
Size - Max Height 165mm, Diameter 140mm and 3mm Thick  


Price:   £89.99 (Including: VAT at 17.5%)

Nautical Astrolabe Nautical Astrolabe Ref: LH-H23

  • HEMISFERIUM
This instrument is a reproduction of a Nautical Astrolabe in the National Maritime Museum of Greenwich. It was copied from a replica in the Naval Museum of Madrid. The nautical astrolabe is a simplification of the planispherical or astronomical astrolabe and its fundamental purpose is to obtain the latitude by observing the altitude of the sun or other stars such as the Pole Star.
Size - Max Height 125mm, Diameter 100mm and 10mm Thick  


Price:   £69.99 (Including: VAT at 17.5%)

Planipherical Astrolabe Planipherical Astrolabe Ref: LH-H22

  • HEMISFERIUM
The origins of the astrolabe were in classical Greece. It entered Europe from Moslem Spain with Latin words engraved alongside the original Arabic. Its peak of popularity was in the 15th and 16th centuries, when it was one of the basic astronomical education tools.
Astrolabes can be used to solve many astronomical problems that would otherwise require rather sophisticated mathematics. All of the everyday uses of the astrolabe are not known, but they were certainly used to tell time during the day or night, to find the time of sunrise and sunset, to locate celestial objects in the sky and also to determine aspects of horoscopes.
Size - Max Height 165mm, Diameter 140mm and 3mm Thick  


Price:   £115.00 (Including: VAT at 17.5%)

Green Witch Tel: 01954 211 288

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