Astrolabe Catalogue

 

Small image of astrolabe rete separated from astrolabe. Click to enlarge.
Date 14th century
Place Sicily (?)
Material Brass
Inventory no. 50769
Acquisition Presented by J. A. Billmeir in 1957
The rete is of the gothic (quatrefoil) type. There are two small hands, one at each end of the Tropic of Capricorn bandThe zodiac on the rete is labelled: ARIES , TAVRVS , GEMINI , CANCER , LEO , VIRGO , LIBRA , SCORPIO , SAGITTARIVS , CAPRICORNIVS , AQUVARIVS , PISCES

Scales


Type Range & Units Numbered Geometry Location
Ecliptic 0 - 30 Degrees of ecliptic Every 5  Ecliptic ecliptic

Stars

There are 22 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
pointer damaged -16° flamant
7.0° of Aries 24° flamant
19.0° of Aries -15° flamant
1.0° of Gemini -5° flamant
15.0° of Gemini 23° flamant
22.0° of Gemini -17° flamant
13.0° of Cancer 39° flamant
18.0° of Cancer -16° flamant
21.0° of Cancer 0 flamant
3.0° of Virgo -12° flamant
24.0° of Virgo 14° flamant
16.0° of Libra 14° flamant
0.0° of Scorpio -21° flamant
4.0° of Scorpio 43° flamant
1.0° of Sagittarius -3° flamant
17.0° of Sagittarius 24° flamant
18.0° of Sagittarius -6° flamant
4.0° of Capricorn 0 flamant
24.0° of Capricorn 33° flamant
18.0° of Aquarius -23° flamant
28.0° of Aquarius 15° flamant
29.0° of Aquarius 60° flamant

Nut & Bolt

The rete is attached using a nut & bolt.
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