Astrolabe | Definition, History, & Facts | Britannica
2024年10月8日 · 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 …
Astrolabe - Wikipedia
An astrolabe (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 …
Astrolabe - World History Encyclopedia
2023年8月31日 · 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 …
How Astrolabes Work - HowStuffWorks
2024年3月25日 · 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 …
Astrolabes and their uses | Britannica - Encyclopedia Britannica
astrolabe, Type of early scientific instrument used for reckoning time and for observational purposes. Astrolabes can be traced to the 6th century ad; they came into wide use in Europe …
Astrolabe - History Tools
2023年11月19日 · An intricate astronomical instrument invented in Ancient Greece around 150 BC. Enabled measurements of celestial objects like stars and planets. Used to tell time, …
Astrolabe | What it is, how it works, who invented it, what it is for ...
The astrolabe is a type of scientific instrument used many years ago that was used to calculate time and for observation purposes. A widely elaborated variety of this instrument, the …
The Astrolabe: Using the Stars for Navigation and Timekeeping …
2019年7月3日 · The technical term for astrolabe is "inclinometer"—which describes perfectly what it does: it allows the user to measure the inclined position of something in the sky (the Sun, …
Museo Galileo - In depth - Astrolabe
The planispheric astrolabe is the most important and versatile instrument made in antiquity for the analogical performance of astronomical computations that would otherwise have been long …
Astrolabe - SpringerLink
2016年1月1日 · The astrolabe is a portable wooden or metal astronomical instrument which is used to measure the positions and altitudes of celestial bodies, to find the observer’s time or …