tähistepiirid
Tähistepiirid, a term derived from Estonian, generally refers to the celestial boundaries or coordinates used in astronomy for mapping and locating celestial objects. These boundaries are not physical divisions in space but rather conceptual lines and grids established on the celestial sphere, an imaginary sphere of infinite radius centered on the Earth.
The primary system used for defining these celestial boundaries is the equatorial coordinate system. This system
These tähistepiirid are crucial for astronomers to accurately record the positions of stars, galaxies, and other