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Hemisferium Nautical Astrolabe 10 ø

£ 107.00
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Order by 2 p.m. tomorrow for delivery by 09 December 2024
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Product Description

The nautical astrolabe is a simplification of the planispherical or astronomical astrolabe and its fundamental purpose is to determine the latitude of a ship by observing the altitude of the sun or other stars such as the Pole Star. The nautical astrolabe has a much heavier design than a typical astrolabe of the time to survive the rough sea conditions and compensate for the movement of the ship.

This instrument is a reproduction of the Nautical Astrolabe of the “Valence” and belonged to the army of Philipe II (16th century). The original is placed in the National Maritime Museum in Greenwich.

Astrolabe, from the Greek, “star searcher”, was introduced to Europe by the Arabs in the early 12th century. It became a vital tool for astronomers, astrologers, and surveyors. This astronomical computer was used to estimate the time, to measure heights of celestial bodies and geographical accidents, determine the local latitude, estimate the sunrise and sunset time and to draw horoscopes.

The astrolabe's importance not only comes from the early development of astronomy but is also effective for determining latitude on land or calm seas. It was less reliable on the moving deck of a ship in rough seas, so the mariner's astrolabe was developed to solve that problem.

In the 9th century, Muslim astronomers improved the device by introducing angular scales and azimuth lines which added to its beauty.

To use an astrolabe, the moving parts are first set to a specific date and a specific time. Once set, solar system objects are represented (both visible and invisible) in their relative positions on the instrument. The typical astrolabe was not a navigation tool, however. The similarly named 'mariner's' astrolabe was used for this purpose and was used widely in the European Renaissance.

This new astrolabe is made by hand in the same way as astrolabes were over a thousand years ago. However, the map of the sky is up to date for the 21st century.
Attention to detail, historical interest and its beautiful design is brought to life in this elegant astrolabe. It comes complete on a stand with a user manual.

The astrolabe measures 150mm in height, 100mm across, and 10mm thick.

Hemisferium products are handmade ornaments with limited functionality, made primarily for decoration purposes. As they are handcrafted there may be small imperfections.

Shipping & Returns

Shipping Options (UK Mainland)

Orders placed before 2:00 p.m. GMT will be processed the same day (Monday-Saturday). Delivery options are selected at checkout.

Standard Delivery

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  • £2.95.
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First Class Delivery

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  • £3.95.

Express Courier Delivery

  • 24 hours.
  • £7.99.

For shipping to locations outside of the UK mainland, see our full shipping policy.

Returns

Unopened goods may be returned for a full refund within 30 days of receipt of your order. For further details, see our full returns policy.

Contact Us

Email

orders@curiousminds.co.uk

Phone
+44(0)1436 670806

Our Address

Curious Minds Science Ltd (Grasshopper Toys)
112 West Princes Street
Helensburgh
Argyll & Bute
G84 8XD

United Kingdom

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