File:Treatise on the Astrolabe 6.jpg

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English: Plate VI to accompany The Treatise on the Astrolabe.


Fig. 14. A 'Table' or disc shewing the twelve astrological 'Houses'.


Fig. 15. Diagram shewing how to ascertain the meridional line from two shadows of an upright gnomon.


Fig. 16. Diagram illustrating the use of the Umbra Recta.


Fig. 17. Diagram of the use of the Umbra Versa, at two observations.


Fig. 18. Use of the Umbra Recta, at two observations.
Date
Source The Complete Works of Geoffrey Chaucer, Vol. III.
Author Walter W. Skeat

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Date/TimeThumbnailDimensionsUserComment
current17:17, 25 February 2014Thumbnail for version as of 17:17, 25 February 20141,909 × 2,756 (194 KB)Keith Edkins== {{int:filedesc}} == {{Information |Description={{En|1=Plate VI to accompany The Treatise on the Astrolabe. Fig. 14. A 'Table' or disc shewing the twelve astrological 'Houses'. Fig. 15. Diagram shewing how to ascertain the meridional line from tw...

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