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How did Ptolemy explain the change of constellations during the year?
Wiki User
∙ 8y ago
All the constellations were fixed to a crystal sphere that rotates at a slightly different rate from the Sun's rotation rate. So while the Sun goes round 365 times in a year, the sphere of the constellations go round 366 times.
Wiki User
∙ 8y ago
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What were ptolemy's accomplishments?
Ptolemy was an ancient Greek mathematician, astronomer, and geographer who made significant contributions to fields such as astronomy and geography. His greatest accomplishments include his geocentric model of the universe, known as the Ptolemaic system, and his work on mapping the stars and constellations in his book "Almagest." These works were foundational in shaping our understanding of the cosmos during antiquity.
Are there circumpolar constellations on the equator?
No, circumpolar constellations are those that never set below the horizon as viewed from a certain latitude. On the equator, all constellations are visible at some point during the year but none are permanently circumpolar.
How can you tell the time of year without looking at a calendar or clock (by looking at the sky)?
During the year, due to the earth's orbit, different constellations appear during different seasons. You can use the constellations to determine the time of year.
Who is ptolemy XIII?
Ptolemy XIII was a pharaoh of Egypt who reigned during the late 1st century BC. He was a member of the Ptolemaic dynasty and co-ruled with his sister Cleopatra VII. Ptolemy XIII is best known for his conflicts with Cleopatra and his involvement in the civil war between her and Julius Caesar.
What constellations are visible in the summer from 2am to 5am?
Some constellations visible in the summer sky between 2am to 5am include Scorpius, Sagittarius, Lyra, Cygnus, and Aquila. These constellations are typically prominent during the summer months in the Northern Hemisphere.
What were ptolemy's accomplishments?
Ptolemy was an ancient Greek mathematician, astronomer, and geographer who made significant contributions to fields such as astronomy and geography. His greatest accomplishments include his geocentric model of the universe, known as the Ptolemaic system, and his work on mapping the stars and constellations in his book "Almagest." These works were foundational in shaping our understanding of the cosmos during antiquity.
How were the constellations names?
The constellations were named to be easily identified for cultural and religious reasons. Most of the constellations were created and named during the bulk of the Mesopotamian era.
Where do the constellations rise in the nigth sky?
Constellations rise in the East and proceed westward during the night as the Earth rotates under them.
Are there circumpolar constellations on the equator?
No, circumpolar constellations are those that never set below the horizon as viewed from a certain latitude. On the equator, all constellations are visible at some point during the year but none are permanently circumpolar.
What are the names of the four constellations that can be seen during fall?
Leo.goegoe
What was ptolemy's country?
He Was Born In Egypt
Why are constellations not seen during the daytime?
During the daytime, the brightness of the sun overwhelms the comparatively dim light from the stars that make up constellations, making them impossible to see. The scattering of sunlight in the Earth's atmosphere also diminishes the contrast between the stars and the sky, further obscuring the visibility of constellations during daylight hours.
Which motion causes some constellations to be visible in New York State only during winter nights and other constellations to be visible only during summer nights?
Earth rotates on its axis.
Who wrote the geography and the astronomy during the greco roman age?
ptolemy....
Who wrote the geography and astronomy during the greco roman age?
ptolemy....
Why you see different constellations of stars during a year?
The Earth's orbit around the Sun causes the night sky to appear different throughout the year. As Earth revolves, we see different parts of the sky at night and different constellations become visible. This phenomenon is known as stellar parallax.
Does food go thought a chemical physical or both change during digestion Explain?
Both
