What is spherical astronomy?
spherical astronomy is the oldest form of astronomy, studies of stars and cosmos. It deals with the extraterrestrial bodies that can be observed from the Earth's surface. These include the constellation and other well -known night sky accessories such as North Star. In spherical astronomy, the night sky is considered to be an imaginary structure called the heavenly sphere that orbits the Earth. All stars, planets and constellations can be described by their positions in the heavenly sphere. Even primitive cultures soon realized that some extraterrestrial bodies remain stationary, while others, including the sun and the moon, changed their position depending on the time of year. Astronomy was important for the religion and culture of many ancient civilizations. Structures such as Stonehenge and Pyramids of Egypt and Central America were placed on assembly Wiastronomic patterns. Long before the invention of the compass, sailors used stars for navigation.
they were all earlyApplication of spherical astronomy. Astronomers set up their calculations on about 3,000 stars and planetary bodies that are visible to the naked eye at any night. As science slowly progressed in the Middle Ages, some astronomers detected undiscovered months and planets by observing fluctuations in orbit visible. The perfection of the telescope in the 16th century allowed many of these bodies to observe for the first time. It also provided discoveries that were shocking for established science and religion, such as Galile's observations, that the Earth was orbited by the sun rather than the other way around.
Even after the arrival of the telescope, all new measurements were based on spherical astronomy measurements. This is because observations still had to be made from the surface of the Earth. Only in the 20th century astronomers understood that all the stars and the constellation move, as the universe expands. Those who seem stationary move only very slowly. While it was based on astronomical observations, this new view of the universe forced the astronomy of the radiCalo to change your star map.
6 Objects were observed at the other end of the universe, as well as extrasolar planets and systems that could not be seen from the Earth's atmosphere. However, spherical astronomy is alive and well. It is used every time the astronomer searches the night sky with binoculars. The resulting measurements are based on the heavenly sphere, as it has been for centuries.