Astrolabe Catalogue


Small image of astrolabe rete separated from astrolabe. Click to enlarge.
Date ca. 1370
Place England (?)
Material Brass
Inventory no. 47869
Acquisition Presented by the Misses M. E. and L. C. Hyett and by The Friends of the Old Ashmolean in 1955
The rete is of the y-shaped (low) type. The Tropic of Capricorn ends in the head and tail of a dragonThe zodiac on the rete is labelled: Aries , Taur9 , Gemi' , Canc' , Leo , Virgo , Libra , Scorpio , Sagittari9 , Capricorn9 , Aquari9 , Pisces


There are 21 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
[no name] 6.0° of Aries 24° flamant
Bacncaycos Baten Kaitos 18.0° of Aries -17° flamant
Mencar Menkar 6.0° of Taurus flamant
Algoh Algol 12.0° of Taurus 40° flamant
Aldebora Aldebaran 2.0° of Gemini 12° flamant
Rigil Rigel 13.0° of Gemini -9° flamant
[no name] 18.0° of Gemini -8° flamant
Alabor Sirius 4.0° of Cancer -16° flamant
Algomeysa Procyon 16.0° of Cancer flamant
Alfard Alphard 10.0° of Leo -6° flamant
Coruus Gienah 2.0° of Virgo -12° flamant
[no name] 22.0° of Libra 52° flamant
[no name] 28.0° of Libra 24° flamant
Elfeca Alphecca 18.0° of Scorpio 30° flamant
Alacrab Antares 29.0° of Scorpio -24° flamant
Alauue Rasalhague 16.0° of Sagittarius 14° flamant
Wega Vega 2.0° of Capricorn 12° flamant
Altair Altair 14.0° of Capricorn flamant
Delfin Deneb Dulfim 12.0° of Aquarius flamant
Denebalgedi Deneb Algiedi 14.0° of Aquarius -20° flamant
[no name] 8.0° of Pisces 26° flamant

Pin & Wedge

The rete is attached using a pin & wedge.
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