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
Opis
OpisEB1711 Armillary Sphere.png
Armillary sphere, from Plate LXXXVII
Data
Źródło
Encyclopedia Britannica, Vol. II, pg. 681
Autor
By a Society of Gentlemen in Scotland
Licencja
Public domainPublic domainfalsefalse
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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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