Astrolabe Catalogue

 

Date 1527
Maker Georg Hartmann
Place Nuremberg
Material Brass
Inventory no. 38642
Acquisition Lent by St John's College, Oxford, in 1924
There are 3 plates with latitudes ranging from 39°0' to 54°0' .

Latitude 39°0'

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Inscribed:
Transcription Translation Notes Type
LATI, XXXIX Latitude 39° Latitude
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Latitude 42°0'

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A faint shadow from the rete can be seen on this side of the plate. It was a standard Hartmann-style rete. The star pointers arose from pierced bases; the ecliptic supports are offset and the characteristic joined pointer for the star Vega (cf. the photo in Webster, Western Astrolabes, p 53. Inscribed:
Transcription Translation Notes Type
LATI, XLII Latitude 42° Latitude
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Latitude 45°0'

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Inscribed:
Transcription Translation Notes Type
LATI, XLV Latitude 45° Latitude
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Latitude 49°0'

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Again, a faint shadow from the rete can be seen on this side of the plate. It was a standard Hartmann-style rete. The star pointers arose from pierced bases; the ecliptic supports are offset and the characteristic joined pointer for the star Vega (cf. the photo in Webster, Western Astrolabes, p 53. Inscribed:
Transcription Translation Notes Type
LATI, XLIX M, XXVII Latitude 49° minutes 27 Latitude
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Latitude 54°0'

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This side of the plate was clearly exposed when the instrument was discolored. It does not, however, appear that the rete was on top of the plate. Moreover, the inside of the hole is likewise blackened, suggesting that the pin too was missing. Inscribed:
Transcription Translation Notes Type
LATI, LIIII Latitude 54° Latitude
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Latitude 53°0'

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Inscribed:
Transcription Translation Notes Type
LATI, LIN Latitude 53° The LIN is most likely a mistake for LIII. Latitude
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