1) American poetry collection 2) Astronomical instrument
Found on
https://www.crosswordclues.com/clue/planisphere
A planisphere is a star chart analog computing instrument in the form of two adjustable disks that rotate on a common pivot. It can be adjusted to display the visible stars for any time and date. It is an instrument to assist in learning how to recognize stars and constellations. The astrolabe, an instrument that has its origins in the Hellenistic...
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http://en.wikipedia.org/wiki/Planisphere
[book] Planisphere is a 2009 poetry collection by the American writer John Ashbery. It consists of 99 alphabetically sequenced poems. ==Reception== The book was reviewed in Publishers Weekly, where the critic wrote that Ashbery`s `wit is still sharp, the poems still rife with clever juxtapositions and colliding voices`, and that `as in his ...
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http://en.wikipedia.org/wiki/Planisphere_(book)
sphere projected onto a plane; map of the heavens
Found on
http://phrontistery.info/p.html
Map of the sky in two-dimensions with an adjustable overlay and shows a part of the sky that is visible anytime of the night or year.
Found on
http://planetfacts.org/space-terms/
• (n.) The representation of the circles of the sphere upon a plane; especially, a representation of the celestial sphere upon a plane with adjustable circles, or other appendages, for showing the position of the heavens, the time of rising and setting of stars, etc., for any given date or hour.
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http://thinkexist.com/dictionary/meaning/planisphere/
(from the article `astrolabe`) any of a type of early scientific instrument used for reckoning time and for observational purposes. One widely employed variety, the planispheric ... ...Greek astronomers used maps and globes; unfortunately, no examples survive. Numerous small metal celestial globes from Islmic makers of the 11th ... [...
Found on
http://www.britannica.com/eb/a-z/p/76
• A circular star map drawn for a given latitude, having a rotary overlay that shows which constellations are visible at any time and date in the year. • A map in which the celestial sphere is projected onto a plane surface, especially in a polar projection, and to which a grid system i...
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http://www.daviddarling.info/encyclopedia/P/planisphere.html
A circular map of the stars covered by a rotating mask that has a window or opening in it. The map and mask are the same size and have time and date markings on the outside. Lining up the time/date marks then expose a given area of the map through the mask so that the stars visible for a given time can then be seen. Planispheres are usually devised...
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http://www.encyclo.co.uk/local/20448
An aid to locating stars and constellations in the night sky. It consists of two discs. One with the entire night sky, and the other, which covers the first, having a window through which a portion of the sky can be seen. The second disc is set according to the date and time.
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http://www.encyclo.co.uk/visitor-contributions.php
Plan'i·sphere noun [
Plani- +
sphere : confer French
planisphère . See
Plain , and
Sphere .] The representation of the circles of the sphere upon a plane; especially, a representation of the celestial sphere upon a plane with adjustable circles, or other appendages,...
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http://www.encyclo.co.uk/webster/P/100
A device that can be adjusted to show the appearance of the night sky for any time and date on a round star map. Planispheres can be used to identify stars and constellations but not the planets, whose positions are always changing.
Found on
http://www.skyandtelescope.com/astronomy-terms/
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.
Found on
http://www.wordinfo.info/words/index/info/view_unit/1999/5
No exact match found.
