Pinterest • Le catalogue d'images

17th Century Compass and Sundial - cuprous alloy, glass (material), ivory, steel - origin: Nuremberg, current location Paris, musée du Louve

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Spherical astrolabe (15th C.). One point which distinguishes Star Map from the astrolabe is that in both cases, astrolabes were not meant for direct viewing. In other words, one could not do real time work. It would require measurement, enscribing, and a duration of labor, etc. Worth mentioning, the spherical astrolabe did not have a viewing instrument, like the planispheric versions did. This made the planispheric require less work and fewer hours of it in order to chart information.

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French astronomical compendium ~ Includes the coat of arms and motto of Charles X. It is composed of a nocturnal, a list of latitudes in degrees of twelve cities in Europe, a compass, an azimuth pinnules (for sighting), and a double scale to assist in the measurement of the unequal hours in a day throughout the year - dates to 3rd quarter of the 16th century. (1st of two pins, Louvre)

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crop-circle-below-milk-hill-3-near-alton-barnes-wiltshire-reported-21st-june-20091

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