Celestial globe
A sphere on which the stars, constellations, and various astronomical circles are drawn. Celestial globes probably predate terrestrial globes. They are usually mounted in harnesses that allow them to rotate and be tilted to different latitudes.
Planetarium
A geocentric model of the solar system that shows the positions of the sun, moon, and planets as viewed from the earth at various times. The positions of the heavenly bodies may be indicated by individual dials, as with the Antikythera mechanism, or through the relative positions of small spheres representing the bodies, as with Archimedes' planetarium. Modern planetaria project images of the heavenly bodies onto a large hemisphere in whose interior observers are situated.
Orrery
A heliocentric model of the solar system in which the planets move about a stationary sun through a clockwork mechanism. Complicated ones can also show the motions of the moons around the various planets and the motion of the rings of Saturn. Named in honor of Charles Boyle, the fourth earl of Orrery, who purchased one of the first such devices built by John Rowley in the early eighteenth century.
Armillary sphere
A skeletal sphere formed from circular bands that denote the celestial equator, ecliptic, tropics, and arctic and antarctic circles. Usually a ball representing the earth is placed in its center. It is used to demonstrate the motion of the stars about the earth.

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22 과천 IT월드 돔페스타 - 2004년   2016.08.21 40714
21 경기고 천체과학관 개관 (경향신문 1970.10.03)  fileimage 2012.12.17 62338
20 窓(창)을 南(남)으로 (1968) - 최초의 천체투영관이 등장하는 소설  fileimage 2012.12.04 61607
19 プラネタリウム基礎調査2016 速報2・規模別統計・数値施設公表   2016.12.28 41802
18 timeline of planetarium   2016.01.23 43679
17 The First Projection Planetarium reopened at Deutsches Museum Munich   2015.02.28 50609
16 The Farnese Atlas  fileimage 2013.05.04 69017
15 Survey of the Goals and Beliefs of Planetarium Professionals Regarding Program Design  file 2013.01.11 59913
» Planetarium & Orrery   2013.05.04 66045
13 Mainz Globe   2016.08.19 41296
12 Kugel Globe   2016.08.19 42303
11 Kovac Planetarium  fileimage 2017.04.21 37199
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