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“planisphere”
planisphere
A circular star map drawn for a given latitude, having a rotating mask that shows which constellations are visible at any time and date in the year.
This entry is located in the following units:
plano-, plan-, -plany, -plania
(page 2)
sphero-, spher-, -sphere-
(page 10)
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“planisphere”
A two-dimensional representation of the night sky as it would appear to a specific observer at one particular latitude and time: A planisphere is a projection of the entire or part of a sphere on a level surface, like a projection of the polar region of the celestial sphere onto a graph or map.
A planisphere can be described as the modern equivalent of the astrolabe, but more convenient to use.
This entry is located in the following unit:
Astronomy and related astronomical terms
(page 19)