Astrolabe Catalogue

 

Small image of astrolabe rete separated from astrolabe. Click to enlarge.
Date ca. 1300
Place Spain (?)
Material Brass
Inventory no. 45307
Acquisition Presented by J. A. Billmeir in 1957
The rete is of the indicator-line (simple) type. Moorish-arch style bases for the pointers. The tropic of capricorn ends in star pointers.Bird star pointers for the following stars: ALCAIR, ALFERAT, VENTERCETI, ALGORAB, ELFETA, RAZALAGEThe zodiac on the rete is labelled: ARIES , TAVR9 , GEMINI , CANCER , LEO , VIRGO , LIBRA , SCORPIVS , SAGITARIVS , CAPRICORNIS , AQVARIVS , PISCES

Scales


Type Range & Units Numbered Geometry Location
Zodiacal signs N/A Degrees of ecliptic Every 5  Circular, concentric ecliptic

Stars

There are 25 stars on the rete marked with dagger 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
CAVDA LEO Denebola pointer damaged pointer damaged dagger
VENTERCETI Baten Kaitos 10.0° of Aries -16° dagger
MIRAT 22.0° of Aries 40° dagger
MENCAR Menkar 2.0° of Taurus 0 dagger
ALDEBARAN Aldebaran 28.0° of Taurus 0 dagger
ALBAT 11.0° of Gemini 44° dagger
BEDELGE Betelgeuse 14.0° of Gemini dagger
ALGOMEIZA Procyon 14.0° of Cancer dagger
ALFART Alphard 15.0° of Leo -5° dagger
CORLEONIS Regulus 19.0° of Leo 15° dagger
ALGORAB Algorab 20.0° of Virgo -12° dagger
ALCHIMEC Spica 10.0° of Libra -7° dagger
ARAMEC 12.0° of Libra 24° dagger
ELFETA Alphecca 1.0° of Scorpio 32° dagger
YEDH Yed Prior 22.0° of Scorpio -1° dagger
CORSCORPIO Antares 28.0° of Scorpio -23° dagger
RAZALAGE Rasalhague 10.0° of Sagittarius 13° dagger
ALGVEGA Vega 4.0° of Capricorn 35° dagger
ALCAIR Altair 20.0° of Capricorn dagger
DELFIN Deneb Dulfim 5.0° of Aquarius 11° dagger
DENELAGEDI Deneb Algiedi 13.0° of Aquarius -20° dagger
EMALFER 22.0° of Aquarius dagger
ALFERAT 19.0° of Pisces 26° dagger
CAVDACETI Deneb Kaitos 21.0° of Pisces 26° dagger

Horse Image:

astrolabe part (photo)

Horse Image:

astrolabe part (photo)

Pin & Horse

The rete is attached using a pin & horse.
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