{"id":113229,"date":"2026-10-09T16:54:26","date_gmt":"2026-10-09T14:54:26","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=113229"},"modified":"2026-10-09T20:35:13","modified_gmt":"2026-10-09T18:35:13","slug":"modern-astrolabium-medium-sized-hemisphere","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/modern-astrolabium-middelgroot-hemisferium\/","title":{"rendered":"Modern astrolabium, medium size | Hemisphere"},"content":{"rendered":"<p class=\"wp-block-paragraph\">If you want to understand how the starry sky shifts throughout the night and year, a modern astrolabe is a tangible tool. It is a flat model of the sky. With the rotating star chart, the reticule, and the scale divisions, you can find out which stars are above the horizon at a given time, when the sun rises and sets, or what time it is based on the sun\u2019s or a star\u2019s height.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is the medium-sized version of the modern astrolabe from Hemisferium. If you want a larger size, there is also <a href=\"https:\/\/www.telescoop.nl\/en\/modern-astrolabium-large-hemisphere\/\">The large version of this astrolabe<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is a decorative piece and at the same time an instrument to practice with. Take the time to read it, because working with an astrolabium requires some explanation and patience. A book in Dutch like <a href=\"https:\/\/www.telescoop.nl\/en\/rob-walrecht-enjoys-the-starry-sky-dutch-edition-for-stargazers\/\">Enjoying the starry sky by Rob Walrecht<\/a> helps to get to know the starry sky. If that sounds like more to you, check out our <a href=\"https:\/\/www.telescoop.nl\/en\/telescopes\/telescopes-for-beginners\/\">telescopes for beginners<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Medium-sized astrolabe from the Hemisphere in modern design, to learn how to read the position of the sun and stars.<\/p>","protected":false},"featured_media":113227,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[3286],"product_cat":[3272],"product_tag":[],"class_list":["post-113229","product","type-product","status-publish","has-post-thumbnail","product_brand-hemisferium","product_cat-geschenken","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":113232,"url":"https:\/\/www.telescoop.nl\/en\/modern-astrolabium-groot-hemisferium\/","url_meta":{"origin":113229,"position":0},"title":"Modern astrolabium, large | Hemisphere","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Large Astrolabium from Hemisferium, on which you can read the position of the sun and stars. The size is easy to read.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/44752_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/44752_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/44752_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113235,"url":"https:\/\/www.telescoop.nl\/en\/arabisch-astrolabium-replica-hemisferium\/","url_meta":{"origin":113229,"position":1},"title":"Arabic astrolabium, replica | Hemisferium","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"A replica of an Arabic astrolabe, after the instruments with which astronomers in the medieval Islamic world determined time and stars.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/44753_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/44753_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/44753_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113213,"url":"https:\/\/www.telescoop.nl\/en\/universeel-astrolabium-van-juan-de-rojas-replica-hemisferium\/","url_meta":{"origin":113229,"position":2},"title":"Universal astrolabe by Juan de Rojas, replica | Hemisferium","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Replica of the astrolabe of Juan de Rojas from the 16th century, which works thanks to its projection at every latitude.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/25041_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/25041_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/25041_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113258,"url":"https:\/\/www.telescoop.nl\/en\/astrolabium-van-hartmann-15-cm-hemisferium\/","url_meta":{"origin":113229,"position":3},"title":"Hartmann's astrolabe, 15 cm | Hemisferium","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Astrolabium of 15 cm to Georg Hartmann, the instrument maker from 16th-century Nuremberg, as a decorative and instructive replica.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/91062_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/91062_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/91062_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113217,"url":"https:\/\/www.telescoop.nl\/en\/zeevaartastrolabium-om-de-breedtegraad-te-bepalen-replica-hemisferium\/","url_meta":{"origin":113229,"position":4},"title":"Seamarine astrolabe to determine the latitude, replica | Hemisferium","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Replica of the astrolabe with which sailors measured the height of the sun or a star to determine the latitude at which they were sailing.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/44747_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/44747_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/44747_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113239,"url":"https:\/\/www.telescoop.nl\/en\/kwadrant-van-beringer-replica-hemisferium\/","url_meta":{"origin":113229,"position":5},"title":"Beringer quadrant, replica | Hemisferium","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Replica of the quadrant of Beringer, a historical instrument in the form of a quarter circle to measure the height of celestial bodies.","rel":"","context":"Similar post","block_context":{"text":"Similar 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