Chaucer's Works, Volume 3 — The House of Fame; The Legend of Good Women; The Treatise on the Astrolabe; The Sources of the Canterbury TalesChaucer, Geoffrey
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Chaucer's Works, Volume 3 — The House of Fame; The Legend of Good Women; The Treatise on the Astrolabe; The Sources of the Canterbury Tales
Chaucer, Geoffrey
English poetry -- Middle English, 1100-1500
Knowe by thyn almenak the degree of the ecliptik of any signe
in which that the planete is rekned for to be, and that is cleped
the degree of his longitude; and knowe also the degree of his
latitude fro the ecliptik, north or south. And by thise samples
folwinge in special, maystow wirke for sothe in every signe of the 5
zodiak. The degree of the longitude, par aventure, of Venus or
of another planete, was 6 of Capricorne, and the latitude of him
was northward 2 degrees fro the ecliptik lyne. I tok a subtil
compas, and cleped that oon poynt of my compas A, and that
other poynt F. Than tok I the point of A, and set it in the 10
ecliptik lyne evene in my zodiak, in the degree of the longitude
of Venus, that is to seyn, in the 6 degree of Capricorne; and
thanne sette I the point of F upward in the same signe, bycause
that the latitude was north, up-on the latitude of Venus, that is to
seyn, in the 6 degree fro the heved of Capricorne; and thus have 15
I 2 degrees by-twixe my two prikkes. Than leide I doun softely
my compas, and sette the degree of the longitude up-on the
orisonte; tho tok I and wexede my label in maner of a peyre
tables to resceyve distinctly the prikkes of my compas. Tho tok
I this forseide label, and leide it fix over the degree of my 20
longitude; tho tok I up my compas, and sette the point of A in
the wex on my label, as evene as I coude gesse over the ecliptik
lyne, in the ende of the longitude; and sette the point of F
endlang in my label up-on the space of the latitude, inwarde and
over the zodiak, that is to seyn, north-ward fro the ecliptik. Than 25
leide I doun my compas, and lokede wel in the wey upon the
prikke of A and of F; tho turned I my riet til that the prikke of
F sat up-on the orisonte; than saw I wel that the body of Venus,
in hir latitude of 2 degrees septentrionalis, assended, in the ende
of the 6 degree, in the heved of Capricorne. And _nota_, that in the 30
same maner maistow wirke with any latitude septentrional in alle
signes; but sothly the latitude meridional of a planete in Capricorne
may not be take, by-cause of the litel space by-twixe the ecliptik
and the bordure of the Astrolabie; but sothly, in alle other signes
it may. 35
Public-domain text, read in full here on John Shaqi.
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