{"id":113787,"date":"2026-10-09T16:57:20","date_gmt":"2026-10-09T14:57:20","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=113787"},"modified":"2026-10-13T09:49:58","modified_gmt":"2026-10-13T07:49:58","slug":"unihedron-sky-quality-meter-sqm-handmeter-for-the-darkness-of-the-night-sky","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/unihedron-sky-quality-meter-sqm-handmeter-voor-de-donkerte-van-de-nachthemel\/","title":{"rendered":"Unihedron Sky Quality Meter SQM, hand-held meter for the darkness of the night sky"},"content":{"rendered":"

Is it really darker tonight than last week, or does it just seem that way? With a sky quality meter, you turn the handheld meter up and press the button to read the brightness of the night sky in magnitude per square arcsecond. The higher the number, the darker the sky.<\/p>\n\n\n\n

This is how you compare areas of interest, track the impact of light pollution, and see how your own garden performs year-round. Handy if you want to know where you stand. the Milky Way can be best viewed<\/a>.<\/p>\n\n\n\n

Always measure the same way: with the meter straight up, away from lights, and take a few measurements in succession for a reliable value. Also note the position of the moon, which you can find in the The lunar calendar<\/a> If you find it again, then you can honestly compare the evenings later on.<\/p>\n\n\n\n

If you want to measure more precisely, with less influence from lights or trees at the edge, then there is the SQM-L with lens<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Unihedron\u2019s hand meter that shows in one number how dark the night sky is, so you can honestly compare places and nights.<\/p>","protected":false},"featured_media":113785,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[3298],"product_cat":[56],"product_tag":[],"class_list":["post-113787","product","type-product","status-publish","has-post-thumbnail","product_brand-unihedron","product_cat-telescoop-accessoires","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":113791,"url":"https:\/\/www.telescoop.nl\/en\/unihedron-sky-quality-meter-sqm-le-met-lens-en-ethernet-voor-vaste-opstelling\/","url_meta":{"origin":113787,"position":0},"title":"Unihedron Sky Quality Meter SQM-LE with lens and Ethernet for fixed installation","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Sky Quality Meter with lens and network connection for a fixed measuring location, which allows you to measure and read the results all night via your computer.","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\/20965_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/20965_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/20965_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113795,"url":"https:\/\/www.telescoop.nl\/en\/unihedron-sky-quality-meter-sqm-lu-met-lens-en-usb-voor-je-computer\/","url_meta":{"origin":113787,"position":1},"title":"Unihedron Sky Quality Meter SQM-LU with lens and USB for your computer","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Sky Quality Meter with a lens that you attach to your laptop via USB, so you can capture the darkness of the sky for an entire night.","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\/48172_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/48172_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/48172_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113789,"url":"https:\/\/www.telescoop.nl\/en\/unihedron-sky-quality-meter-sqm-l-met-lens\/","url_meta":{"origin":113787,"position":2},"title":"Unihedron Sky Quality Meter SQM-L with lens","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Version of the Sky Quality Meter with a lens, which measures a smaller area of sky and therefore suffers less from lights or trees nearby.","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\/20964_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/20964_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/20964_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113800,"url":"https:\/\/www.telescoop.nl\/en\/unihedron-sky-quality-meter-sqm-lu-dl-met-lens-usb-en-datalogger\/","url_meta":{"origin":113787,"position":3},"title":"Unihedron Sky Quality Meter SQM-LU-DL with lens, USB and data logger","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Sky Quality Meter that measures itself at fixed times and stores the values, for long measurement series without a laptop next to it.","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\/48182_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/48182_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/48182_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113803,"url":"https:\/\/www.telescoop.nl\/en\/unihedron-sky-quality-meter-sqm-met-rs232-aansluiting-voor-vaste-opstelling\/","url_meta":{"origin":113787,"position":4},"title":"Unihedron Sky Quality Meter SQM with RS232 connection for fixed installation","author":"Info 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