{"id":113215,"date":"2026-10-09T16:54:23","date_gmt":"2026-10-09T14:54:23","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=113215"},"modified":"2026-10-09T20:34:55","modified_gmt":"2026-10-09T18:34:55","slug":"ring-sun-dial-replica-of-a-portable-historical-sun-dial-hemispherical","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/ringzonnewijzer-replica-van-een-draagbare-historische-zonnewijzer-hemisferium\/","title":{"rendered":"Ring sundial, replica of a portable historical sundial | Hemisferium"},"content":{"rendered":"

Long before the wristwatch, people had a sundial on their wrist. This Hemisferium sun dial ring is a replica of such a portable instrument. You hold it upright in the sun, after which the sunlight falls through a small opening as a light spot on a clock dial. That\u2019s how you read the time. Such sundials were in use for centuries as a kind of pocket watch of their time.<\/p>\n\n\n\n

It is primarily a decorative and educational object, and a gift for anyone who is interested in astronomy or old instruments. Those who collect portable sundials can combine them with the cylinder sundial of Hemisferium<\/a>.<\/p>\n\n\n\n

Keep in mind that you are reading the sun\u2019s time. In the Netherlands, it runs one quarter of an hour to an hour behind the clock during winter time, and one to two hours during summer time. If you\u2019re curious about what the sky looks like through a large telescope, then plan a visit to one of the Astronomers in the Netherlands<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Portable sundial in the form of a ring, following a historical example. A decorative and educational gift for lovers of old instruments.<\/p>","protected":false},"featured_media":113214,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[3286],"product_cat":[3272],"product_tag":[],"class_list":["post-113215","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":111636,"url":"https:\/\/www.telescoop.nl\/en\/zwo-seestar-s50-pro\/","url_meta":{"origin":113215,"position":0},"title":"ZWO Seestar S50 Pro","author":"Info telescoop","date":"25-08-2026","format":false,"excerpt":"The ZWO Seestar S50 Pro is the successor to the Seestar S50: 50 mm quadruplet APO (260 mm, f\/5.2), two 8.3 MP 4K sensors, a 63-degree wide-angle camera for the Milky Way up to 8K, three built-in filters, a 10,000 mAh battery (up to 9 hours), and 128 GB of storage. Four capture modes for...","rel":"","context":"With 5 comments","block_context":{"text":"With 5 comments","link":"https:\/\/www.telescoop.nl\/en\/zwo-seestar-s50-pro\/#comments"},"img":{"alt_text":"ZWO Seestar S50 Pro hero","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/113215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=113215"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/113214"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=113215"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=113215"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=113215"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=113215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}