Determine the location of data collection
To a point on the celestial sphere determine the location of the celestial sphere on the establishment of the spherical coordinate system. There are two basic elements:
① basic plane. By the celestial sphere on a selected set by the great circle. Known as the great circle of laps, the two-lap as a spherical geometry is one of the very coordinates.
② the main point, also known as the origin. Selected by the celestial sphere on a pole of the coordinates of the great circle and the circle of the intersection identified.
Tian Tian at this point in the coordinates of the location of the two spherical coordinates calibration:
① coordinates or the first to coordinate. Made the point and the coordinates of the great circle of the pole, said Deputy laps from the main point to the vice-circle and circle the arc length of the intersection to coordinate.
② second latitudinal coordinates, or coordinates. From the circle-on effect along the circle to the point of the great arc for the latitudinal coordinates long. Any point on the celestial sphere can be the location from which to identify only two coordinates. This spherical coordinate system is orthogonal coordinates. For different circles and the main base, and to coordinate the different measurements used by the way, leads to a different celestial sphere coordinates, a commonly used amlodipine coordinates, the equatorial coordinate system, the ecliptic coordinates and coordinates Silver Road
To a point on the celestial sphere determine the location of the celestial sphere on the establishment of the spherical coordinate system. There are two basic elements:
① basic plane. By the celestial sphere on a selected set by the great circle. Known as the great circle of laps, the two-lap as a spherical geometry is one of the very coordinates.
② the main point, also known as the origin. Selected by the celestial sphere on a pole of the coordinates of the great circle and the circle of the intersection identified.
Tian Tian at this point in the coordinates of the location of the two spherical coordinates calibration:
① coordinates or the first to coordinate. Made the point and the coordinates of the great circle of the pole, said Deputy laps from the main point to the vice-circle and circle the arc length of the intersection to coordinate.
② second latitudinal coordinates, or coordinates. From the circle-on effect along the circle to the point of the great arc for the latitudinal coordinates long. Any point on the celestial sphere can be the location from which to identify only two coordinates. This spherical coordinate system is orthogonal coordinates. For different circles and the main base, and to coordinate the different measurements used by the way, leads to a different celestial sphere coordinates, a commonly used amlodipine coordinates, the equatorial coordinate system, the ecliptic coordinates and coordinates Silver Road
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