Gnomonic projection

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a projection of the circles of the sphere, in which the point of sight is taken at the center of the sphere, and the principal plane is tangent to the surface of the sphere.
- Cyc. of Arts & Sciences.

See also: Gnomonic

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A Jupiter blank, Saturn blanks, a compact gnomonic projection sky atlas (hand plotted by Tony Williams on a computer generated grid for meteor tracking) were all prepared.
gnomonic projection of spherical coordinates [alpha], [delta] to the plane coordinates x', y',