{"id":5462,"date":"2021-09-07T04:55:51","date_gmt":"2021-09-07T00:55:51","guid":{"rendered":"https:\/\/astronomicalsolutions.com\/2020site\/?post_type=product&#038;p=5462"},"modified":"2023-09-21T16:00:16","modified_gmt":"2023-09-21T12:00:16","slug":"sky-quality-meter-sqm-l","status":"publish","type":"product","link":"https:\/\/astronomicalsolutions.com\/staging\/product\/sky-quality-meter-sqm-l\/","title":{"rendered":"SKY QUALITY METER (SQM-L)"},"content":{"rendered":"<p>An affordable meter for measuring sky brightness for astronomers! The &#8220;Sky Quality Meter &#8211; L&#8221; measures the brightness of the night sky in magnitudes per square arcsecond. Unprecedented sensitivity in a handheld meter!<\/p>\n<p>Designed by Dr. Doug Welch and Anthony Tekatch<\/p>\n<p>Uses:<\/p>\n<ul>\n<li>Find out how good the night or site REALLY is.<\/li>\n<li>Compare the sky brightness at different sites quantitatively.<\/li>\n<li>Document the evolution of light pollution in your area.<\/li>\n<li>Set planetarium dome illumination to mimic the skies people are likely to experience elsewhere in the city.<\/li>\n<li>Monitor sky brightness through the night, night-to-night, and year-to-year.<\/li>\n<li>Determine which nights show the greatest promise for finding the &#8216;faintest fuzzies&#8217;!<\/li>\n<li>Calibrate the effect of sky brightness on qualitative measures such as the Bortle Scale.<\/li>\n<li>Investigate how sky brightness correlates with the solar cycle and month-to-month sunspot activity.<\/li>\n<li>Help provide local ground truth for future sky brightness prediction with the Clear Sky Clock.<\/li>\n<li>CCD users can make a correlation between the SQM reading and when the background reaches some ADC level.<\/li>\n<\/ul>\n<p>Features:<\/p>\n<ul>\n<li>Audible signal while measurement is in progress.<\/li>\n<li>Sky brightness displayed in visual magnitudes per square arcsecond.<\/li>\n<li>Infrared blocking filter restricts measurement to visual bandpass.<\/li>\n<li>Temperature in both Celsius and Fahrenheit as well as model number and serial number can be displayed with different button press sequence.<\/li>\n<li>Precision readings at even the darkest sites.<\/li>\n<li>Power-saving features designed in for maximum battery life.<\/li>\n<li>Reverse battery protection.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>An affordable meter for measuring sky brightness for astronomers! The &#8220;Sky Quality Meter &#8211; L&#8221; measures the brightness of the night sky in magnitudes per square arcsecond. Unprecedented sensitivity in a handheld meter! Designed by Dr. Doug Welch and Anthony Tekatch<\/p>\n<p>Sky Quality Meter measures the night sky brightness <span class=\"style3\">in magnitudes per square arcsecond. This &#8220;L&#8221; model has an additional lens, for a narrower FOV.<\/span><\/p>\n","protected":false},"featured_media":5463,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_cat":[44],"product_tag":[],"class_list":{"0":"post-5462","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-accessories","7":"desktop-align-center","8":"tablet-align-left","9":"mobile-align-left","10":"ast-product-gallery-layout-horizontal-slider","11":"ast-product-gallery-with-no-image","12":"ast-product-single-variable","13":"ast-product-tabs-layout-vertical","14":"ast-qv-on-image","16":"first","17":"onbackorder","18":"taxable","19":"shipping-taxable","20":"product-type-variable"},"_links":{"self":[{"href":"https:\/\/astronomicalsolutions.com\/staging\/wp-json\/wp\/v2\/product\/5462"}],"collection":[{"href":"https:\/\/astronomicalsolutions.com\/staging\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/astronomicalsolutions.com\/staging\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/astronomicalsolutions.com\/staging\/wp-json\/wp\/v2\/comments?post=5462"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astronomicalsolutions.com\/staging\/wp-json\/wp\/v2\/media\/5463"}],"wp:attachment":[{"href":"https:\/\/astronomicalsolutions.com\/staging\/wp-json\/wp\/v2\/media?parent=5462"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/astronomicalsolutions.com\/staging\/wp-json\/wp\/v2\/product_cat?post=5462"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/astronomicalsolutions.com\/staging\/wp-json\/wp\/v2\/product_tag?post=5462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}