What is the heavenly sphere?

Heavenly sphere is an imaginary structure that is often used in astronomy and navigation that helps conceptualize the relative position of heavenly bodies in relation to the observer on the ground. It can be easily introduced as a ball that is larger than the Earth, although no specific size is required, which is concentric for the country itself. On the inside of this sphere can be reflected in various heavenly objects from Earth, such as other planets and stars. The celestial sphere is therefore an imaginary ball on which different heavenly objects are placed to discuss more easily their relative placement to the observer on the ground rather than their real placement in the universe. Its use in scientific fields, such as astronomy, persists due to its simplicity, it is important that students of astronomy recognize that there is no such sphere. The term "heavenly sphere" can also be used to indicate a physical model that represents the relative location of the heavenly bodies on the inside or outside the globe.

One of the simplest ways to imagine the heavenly sphere is to visualize the Earth as a whole. From the North and South Poles, the lines can be expanded outwards and new North and South poles on the inside of the larger sphere. The ground and the Earth's equator can also be extended to create a celestial meridian and an equator that creates a simple representation of how the observer on Earth follows the distant objects. Different celestial bodies can then be placed on the celestial sphere in a way that indicates their perceived position from the ground.

The creation of an imaginary heavenly sphere makes study and discussion of the celestation bodies easier. Astronomy students understand that the real positions of different stars and planets are by no means related to how they are perceived from Earth, but such positions in three -dimensional space are often difficult to understand and use. For a particular observer can also be createdIndividual celestial sphere by creating a point point directly above it, with a meridian running north and south. The personal sphere uses an equator that represents the position of the observer on the surface of the Earth, and although it is possible to create a full sphere, the observer is only visible at the moment.