Large brass Rojas astrolabe - 20 cm diameter - reproduction -

Large brass Rojas astrolabe - diameter 20 cm - reproduction. A legendary medieval computer, precision navigation tool, and astronomical instrument. A universal astrolabe for the Northern Hemisphere, built based on the model by the Spanish mathematician Juan de Rojas - a 1550 model. The sky map has been modernized. The device can be used for actual measurements. Product information: Renaissance style. Dimensions: maximum height 24.5 cm x width 20 cm x depth 0.7 cm. The device is fully functional. Handmade in the same way as astrolabes were made hundreds of years ago. Our astrolabe is characterized by attention to detail, high historical value, and elegant craftsmanship. Delivered with a wooden base. Astrolabe: The astrolabe is an astronomical computer used to determine the time based on the position of the sun and stars. Thanks to it, centuries ago, it was possible to know what time it was. This question, now trivial, was once a great challenge in the pre-smartphone era. Thanks to it, it was possible to determine the timing of phenomena such as sunrise and sunset, and it allowed for the determination of the position of the stars and directions. It was used to perform many advanced calculations. There were about 400 of them. The astrolabe was also a popular navigation tool. The astrolabe reproduces a 3D map of the sky on a flat surface. Its history began over 2,000 years ago. Over the centuries, knowledge evolved and more complex devices were built. Much credit for this goes to Arab scientists. According to sources, thanks to this device in the Middle Ages, for example, a very accurate map of Baghdad was created. Thanks to them, the astrolabe arrived in Europe in the 12th century. It remained the most common astronomical instrument until about 1650, when it was replaced by more precise instruments.