STEREOGRAPHIC PROJECTION OF THE HEAVENS OVER BELGRADE USED FOR THE CONSTRUCTION OF ASTRONOMICAL CITY CLOCK
There are many different ways of rendering 3D objects into two dimensions. Different kinds of projections are able to represent things like size, areas, distances or perspective, realistically. One particular kind of projection used for representing spheres and circles on spheres in two dimensions (...
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Format: | Article |
Language: | English |
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SORGING
2019-05-01
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Series: | Journal of Industrial Design and Engineering Graphics |
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Online Access: | http://sorging.ro/jideg/index.php/jid/article/view/477 |
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author | Ivana CVETKOVIC Branislav POPKONSTANTINOVIC Misa STOJICEVIC Ratko OBRADOVIC Rodoljub MILICEVIC |
author_facet | Ivana CVETKOVIC Branislav POPKONSTANTINOVIC Misa STOJICEVIC Ratko OBRADOVIC Rodoljub MILICEVIC |
author_sort | Ivana CVETKOVIC |
collection | DOAJ |
description | There are many different ways of rendering 3D objects into two dimensions. Different kinds of projections are able to represent things like size, areas, distances or perspective, realistically. One particular kind of projection used for representing spheres and circles on spheres in two dimensions (i.e. some maps of the earth or celestial sphere) is stereographic projection. Stereographic projection has two important characteristics that differentiate it from other kinds of projections: it preserves circles and angles. This paper discloses the construction of the stereographic projection of the celestial sphere over Belgrade as the clock face of the astronomical clock. This astronomical clock will be capable to present the motion, as seen from the Earth, of the Sun, Moon, Ecliptic and the phases of the Moon during the year. Moreover, the hours of the sunrise, noon and sunset will be clearly observed on the stereographic dial of the astronomical clock. |
first_indexed | 2024-03-12T11:12:20Z |
format | Article |
id | doaj.art-261409105d1848b7a8906b0c219565c9 |
institution | Directory Open Access Journal |
issn | 1843-3766 2344-4681 |
language | English |
last_indexed | 2024-03-12T11:12:20Z |
publishDate | 2019-05-01 |
publisher | SORGING |
record_format | Article |
series | Journal of Industrial Design and Engineering Graphics |
spelling | doaj.art-261409105d1848b7a8906b0c219565c92023-09-02T02:34:20ZengSORGINGJournal of Industrial Design and Engineering Graphics1843-37662344-46812019-05-01141STEREOGRAPHIC PROJECTION OF THE HEAVENS OVER BELGRADE USED FOR THE CONSTRUCTION OF ASTRONOMICAL CITY CLOCKIvana CVETKOVIC0Branislav POPKONSTANTINOVIC1Misa STOJICEVIC2Ratko OBRADOVIC3Rodoljub MILICEVIC4University of BelgradeUniversity of BelgradeUniversity of BelgradeUniversity of Novi SadUniversity of BelgradeThere are many different ways of rendering 3D objects into two dimensions. Different kinds of projections are able to represent things like size, areas, distances or perspective, realistically. One particular kind of projection used for representing spheres and circles on spheres in two dimensions (i.e. some maps of the earth or celestial sphere) is stereographic projection. Stereographic projection has two important characteristics that differentiate it from other kinds of projections: it preserves circles and angles. This paper discloses the construction of the stereographic projection of the celestial sphere over Belgrade as the clock face of the astronomical clock. This astronomical clock will be capable to present the motion, as seen from the Earth, of the Sun, Moon, Ecliptic and the phases of the Moon during the year. Moreover, the hours of the sunrise, noon and sunset will be clearly observed on the stereographic dial of the astronomical clock.http://sorging.ro/jideg/index.php/jid/article/view/477stereographic projectionBelgradeastronomical city clockcelestial sphereastrolabe |
spellingShingle | Ivana CVETKOVIC Branislav POPKONSTANTINOVIC Misa STOJICEVIC Ratko OBRADOVIC Rodoljub MILICEVIC STEREOGRAPHIC PROJECTION OF THE HEAVENS OVER BELGRADE USED FOR THE CONSTRUCTION OF ASTRONOMICAL CITY CLOCK Journal of Industrial Design and Engineering Graphics stereographic projection Belgrade astronomical city clock celestial sphere astrolabe |
title | STEREOGRAPHIC PROJECTION OF THE HEAVENS OVER BELGRADE USED FOR THE CONSTRUCTION OF ASTRONOMICAL CITY CLOCK |
title_full | STEREOGRAPHIC PROJECTION OF THE HEAVENS OVER BELGRADE USED FOR THE CONSTRUCTION OF ASTRONOMICAL CITY CLOCK |
title_fullStr | STEREOGRAPHIC PROJECTION OF THE HEAVENS OVER BELGRADE USED FOR THE CONSTRUCTION OF ASTRONOMICAL CITY CLOCK |
title_full_unstemmed | STEREOGRAPHIC PROJECTION OF THE HEAVENS OVER BELGRADE USED FOR THE CONSTRUCTION OF ASTRONOMICAL CITY CLOCK |
title_short | STEREOGRAPHIC PROJECTION OF THE HEAVENS OVER BELGRADE USED FOR THE CONSTRUCTION OF ASTRONOMICAL CITY CLOCK |
title_sort | stereographic projection of the heavens over belgrade used for the construction of astronomical city clock |
topic | stereographic projection Belgrade astronomical city clock celestial sphere astrolabe |
url | http://sorging.ro/jideg/index.php/jid/article/view/477 |
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