0
An astrolabe is an angle-measuring device, vaguely similar to a sextant or an octant. Holding the astrolabe by a cord, one sights through a set of peepholes to observe a star, and you can then read the angle of elevation of the star above the horizon. It's not especially accurate, particularly not when on the pitching deck of a ship at sea.
Columbus would have used this device to measure the elevation of the north star Polaris above the horizon, giving him his latitude (at least, approximately...). In order to calculate longitude, one also needs an accurate clock, which Columbus did NOT have.
What else can I help you with?
Did Christopher Columbus use an Astrolabe?
a person did it
What did Columbus use to help him with directions?
Columbus would have used a mariner's astrolabe to determine his ship's latitude while at sea.
What equipment did christopher columbus use on his voyages?
Christopher Columbus did not have modern technology available to him that people would today, but he did have basic instruments. He was able to use things to navigate such as a compass, a cross-staff, back-staff, and an astrolabe.
Did James Cook use a Astrolabe?
Yes he did
What instrument did Columbus use to calculate the speed his ship was travelling?
what is the instrument used by Christopher Columbus use to measure speed
Did Christopher Columbus use an Astrolabe?
a person did it
What did Columbus use to help him with directions?
Columbus would have used a mariner's astrolabe to determine his ship's latitude while at sea.
What equipment did christopher columbus use on his voyages?
Christopher Columbus did not have modern technology available to him that people would today, but he did have basic instruments. He was able to use things to navigate such as a compass, a cross-staff, back-staff, and an astrolabe.
What tools were used on Columbus expedition?
Astrolabe, compass, rudder and movable sails, map.
What new technology enabled Christopher Columbus to make this long journey?
The astrolabe, moveable sail, moveable keel.
How do you you use astrolabe in a sentence?
The scientist used an astrolabe to find the altitude of the sun and stars.
Did James Cook use a Astrolabe?
Yes he did
What tools did Cartier use on his exploration?
astrolabe
Use the word Astrolabe in a sentence?
An astrolabe is an old instrument used to calculate the position of celestial bodies. Here are some sentences.I found an antique astrolabe in an old store.An astrolabe was used before the sextant was invented.Polish that astrolabe so it doesn't tarnish.
What instrument did Columbus use to calculate the speed his ship was travelling?
what is the instrument used by Christopher Columbus use to measure speed
What is a sailing instrument that determined a ship's location by its position under the stars?
These days, an instrument called a "Sextant". Before Columbus, an "Astrolabe".
Did Sir Francis Drake use an astrolabe?
yes
