APPLET
The planispheric astrolab is based on a stereographic projection of the celestial sphere: circles and angles on the sphere are preserved.
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The initial option of the "Draw"
menu is the step by step graphical construction of the
plate. Use the "next" button to proceed. |
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The menu item "Rete steps" will construct the rete step by step using the "next" button. "Plate" or "Rete" will draw the complete plate or rete. "Plate and Rete" is drawing the complete astrolab. |
| Books |
| Morrison, James E.: The Astrolabe;
Janus, Softcover edition, 2007, Rehobot
Beach, DE USA; ISBN-10: 0939320304, ISBN-13: 978-0939320-30-1 Evans, James: The History and Practice of Ancient Astronomy; Oxford University Press, 1998; pp 141-161. Oestmann, Günther: Geschichte, Konstruktion und Anwendung des Astrolabiums bei Ziffernblätter astronomischer Uhren; Athena Verlag, Oberhausen 2014, ISBN 978-3-89896-527-9. |
| LinksLL |
