File:EB1711 Armillary Sphere.png
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File information
Structured data
Captions
The components of the armillary sphere are labeled.
- A
- equinoctial ring, showing the sun's ascension
- b
- north pole nut holding sun Ψ
- B
- ecliptic ring, showing location of the sun on a specific day of a month
- C
- tropic of Cancer
- d
- pin holding moon Ζ
- D
- tropic of Capricorn
- e
- where tropic of Cancer touches ecliptic
- E
- arctic circle
- f
- where tropic of Capricorn touches ecliptic
- F
- antarctic circle
- G
- equinoctial colure
- H
- solstitial colure
- J
- terrestrial globe
- K
- terrestrial axis
- L
- flat celestial meridian
- M
- movable horizon
- n
- terrestrial north pole
- N
- celestial north pole
- N
- pedestal
- O
- joint
- P
- arc of joint O (0 to 90 degrees)
- Q
- brass arm
- r
- elevation screw
- R
- upright piece
- s
- terrestrial south pole
- S
- celestial south pole
- T
- box
- U
- 1st of 2 axes of wheels for T (earth turns)
- V
- 2nd of 2 axes of wheels for T (sphere of circles turns)
- W
- winch
- Ψ
- sun
- Ζ
- moon
Summary
[edit]DescriptionEB1711 Armillary Sphere.png | Armillary sphere, from Plate LXXXVII |
Date | |
Source | Encyclopedia Britannica, Vol. II, pg. 681 |
Author | By a Society of Gentlemen in Scotland |
Licensing
[edit]Public domainPublic domainfalsefalse |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer. You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
Public domainPublic domainfalsefalse |
This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 06:50, 13 November 2006 | 2,096 × 3,092 (3.38 MB) | SEWilco (talk | contribs) | {{Information |Description=Armillary sphere, from Plate LXXVII |Source=Encyclopedia Britannica |Date=1771 }} |
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