Astrolabe Catalogue


Small image of astrolabe rete separated from astrolabe. Click to enlarge.
Date ca. 1400
Place Paris (?)
Material Brass
Inventory no. 41468
Acquisition Presented by Lewis Evans in 1924
The rete is of the indicator-line (full) type. Debased Y; Indicator-line, full rete. Cf. the astrolabe Lot 124, Sotheby’s Fine Instruments of Science and Technology 1300-1900, p. 24. The rete on these two instruments are almost identical. .Dragon’s head on Tropic of CapricornThe zodiac on the rete is labelled: ARI , TAV , GEMI , CANC , LEO , VIR , LIB , SCOR , SAGIT , CAP’COR , AQU”RI , PISCC


The rete is inscribed
Transcription Translation Notes Type
Two small marks on the back of the rete--a triangle and a backwards 5 Construction mark


Type Range & Units Numbered Geometry Location
Zodiacal signs N/A Zodiacal divisions, equal or unequal   Ecliptic ecliptic


There are 28 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
PARTACAITOZ Baten Kaitos 19.0° of Aries -14° flamant
MENCAR Menkar 6.0° of Taurus flamant
AVGETENAR Angetenar 21.0° of Taurus -16° flamant
ALDEBARA Aldebaran 0.0° of Gemini 15° flamant
ALHAIOT 7.0° of Gemini 40° flamant
RIGIL Rigel 12.0° of Gemini -10° flamant
ALGEVSE Betelgeuse 18.0° of Gemini flamant
ALhABOR Sirius 3.0° of Cancer -14° flamant
ALGOMEIZA Procyon 13.0° of Cancer flamant
ALDI[raan] 6.0° of Leo flamant
ALFART Alphard 12.0° of Leo -17° flamant
VRSA Talitha Borealis 16.0° of Leo 51° flamant
COR LEO Regulus 20.0° of Leo 14° flamant
DENERALEZED Denebola 13.0° of Virgo 18° flamant
ALGORAP Algorab 22.0° of Virgo -12° flamant
ALChIMEC Spica 12.0° of Libra -8° flamant
BENENAS Benetnasch 19.0° of Libra 48° flamant
ALRAM[et] Arcturus 29.0° of Libra 22° flamant
ALFECA Alphecca 20.0° of Scorpio 28° flamant
YED Yed Prior 26.0° of Scorpio -1° flamant
COR SCOR Antares 29.0° of Scorpio -23° flamant
ALHAVE Rasalhague 15.0° of Sagittarius 14° flamant
WEGA Vega 6.0° of Capricorn 36° flamant
ALTAIR Altair 17.0° of Capricorn flamant
LIBEDENEB 27.0° of Capricorn -25° flamant
ALRIF Deneb 3.0° of Aquarius 45° flamant
ALFERAZ Alpheratz 8.0° of Pisces 24° flamant

Horse Image:

astrolabe part (photo)

Horse Image:

astrolabe part (photo)

Pin & Wedge

The rete is attached using a pin & wedge. Modern replacements, engraved.
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