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An astrolabe (‹See Tfd› Greek: ἀστρολάβος astrolábos, 'star-taker'; Arabic: ٱلأَسْطُرلاب al-Asṭurlāb; Persian: ستارهیاب Setāreyāb) is an astronomical instrument dating to ancient times. It serves as a star chart and physical model of visible half-dome of the sky.
astrolabe, any of a type of early scientific instrument used for reckoning time and for observational purposes. One widely employed variety, the planispheric astrolabe, enabled astronomers to calculate the position of the Sun and prominent stars with respect to both the horizon and the meridian.
Astrology: Free Natal Chart (Horoscope) from Astrolabe, the leader in automated birth chart reports, relationship reports, and transit and progressed horoscope reports. The largest publisher of Computer Astrology titles related to Astrology and Horoscopes.
The Astrolabe is an astronomical instrument used from around the 6th century to measure time and position by determining the altitude of heavenly bodies like the Sun and certain stars.
The astrolabe is a projection of a celestial sphere, with a graduated circumference and a needle, with a point of sight that rotates around it. Normally, it focuses on the star, by the object’s sorbet, and another person has to read the string number on the astrolabe’s scale.
Line art drawing of astrolabe. What Is an Astrolabe? The mariner's astrolabe was developed over two thousand years ago. It was an instrument of navigation used to measure celestial altitude. Celestial altitude is the relative "height" of a star, planet, or other celestial object above the horizon.
Today I want to walk you through the fascinating history of one of the most important scientific instruments of the medieval world – the astrolabe. Used by astronomers, astrologers, and navigators for over two millennia, this versatile analog calculator helped decode the mysteries of the cosmos.
The mariner’s astrolabe was an important navigational tool for finding latitude. It is a simplified version of the traditional astrolabe – an instrument that could help tell time, find altitude, and find latitude. The mariner’s astrolabe measures the height of the sun or a star above the horizon.
With an astrolabe, astronomers could calculate the position of objects in celestial spheres, the time of day (or night), the time of year, the altitude of any object, different latitudes, and much more.
With ancient origins and a two thousand year history, the astrolabe illuminates astronomy, time-telling, astrology and religion across cultures, time and place. The Museum's collection ranges from India and the Middle East to Europe, with many unique and significant examples.