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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Main Authors: Ivana CVETKOVIC, Branislav POPKONSTANTINOVIC, Misa STOJICEVIC, Ratko OBRADOVIC, Rodoljub MILICEVIC
Format: Article
Language:English
Published: SORGING 2019-05-01
Series:Journal of Industrial Design and Engineering Graphics
Subjects:
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.
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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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AT branislavpopkonstantinovic stereographicprojectionoftheheavensoverbelgradeusedfortheconstructionofastronomicalcityclock
AT misastojicevic stereographicprojectionoftheheavensoverbelgradeusedfortheconstructionofastronomicalcityclock
AT ratkoobradovic stereographicprojectionoftheheavensoverbelgradeusedfortheconstructionofastronomicalcityclock
AT rodoljubmilicevic stereographicprojectionoftheheavensoverbelgradeusedfortheconstructionofastronomicalcityclock