Astronography, or, Astronomical geography, with the use of globes : arranged either for simultaneous reading and study in classes, or for study in the common method (1854)
s of theMovable System do not, in this respect, conflict with thoseof the Permanent. 6. The Parallel Sphere constitutes the only re-maining case where, in the Intersection of two SphericalSystems, there are four right angles at the centre.When the two Axes coincide, and also the planes of thetwo… … *l. We have represented the parallel Sphere in the ac-companying diagram, where e q, the Equator, is parallelwith h o, the Horizon, and the Observers Line with theEarths Axis, as may be seen by the double line, one partdotted, which in our figures always represent MovablePositions. The Sun in the…
Astronomy
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