Date |
ca. 1350 |
Place |
Oxford |
Material |
Brass |
Inventory no. |
47901 |
Acquisition |
Lent by Oriel College, Oxford,
in 1924 |
The rete is of the y-shaped (straight) type. The
Tropic of Capricorn band has broken off near the top of the
instrument.The zodiac on the rete is labelled: Aries , Tau ,
Gei , Can , Leo , Vir , Libra , SScor
9 ,
SSag
9 , Cap' , Aquar
9 , Pisc'
Scales
Range & Units |
Numbered |
Geometry |
Location |
Calendar |
First day of month - Last day of month Days of
year |
Every 5 |
Circular, concentric |
tropic of capricorn |
Stars
There are 17 stars on the rete marked with
flamant pointers. Unless otherwise indicated the star name,
mediation and declination are as marked/measured on the
rete.
Click on the star name or modern star name to search for
other astrolabes with the same star.
Star name
(on instrument) |
Modern star
(if known) |
Mediation |
Declination |
Pointer |
alhab' |
Sirius |
pointer damaged |
pointer damaged |
flamant |
libed |
|
pointer damaged |
pointer damaged |
flamant |
cor |
Antares |
pointer damaged |
pointer damaged |
flamant |
corv9 |
Gienah |
pointer damaged |
pointer damaged |
flamant |
ala |
|
5.0° of Aries |
23° |
flamant |
batonk |
Baten Kaitos |
20.0° of Aries |
-15° |
flamant |
aliok |
Capella |
14.0° of Gemini |
44° |
flamant |
elgueza |
Betelgeuse |
16.0° of Gemini |
6° |
flamant |
algom |
Procyon |
18.0° of Cancer |
7° |
flamant |
egr' |
|
22.0° of Cancer |
44° |
flamant |
cau le |
Regulus |
16.0° of Virgo |
18° |
flamant |
alramc |
Arcturus |
27.0° of Libra |
22° |
flamant |
yed |
Yed Prior |
27.0° of Scorpio |
8° |
flamant |
Wega |
Vega |
6.0° of Capricorn |
37° |
flamant |
alth' |
Altair |
17.0° of Capricorn |
5° |
flamant |
delfin |
Deneb Dulfim |
10.0° of Aquarius |
9° |
flamant |
hu9 equi |
Scheat |
11.0° of Pisces |
22° |
flamant |
Rivet
The rete is attached using a rivet.