{"id":1022,"date":"2025-04-08T20:17:21","date_gmt":"2025-04-08T20:17:21","guid":{"rendered":"https:\/\/astro.wku.edu\/bell_wordpress\/?page_id=1022"},"modified":"2025-04-08T20:41:50","modified_gmt":"2025-04-08T20:41:50","slug":"bell-snr-calculator","status":"publish","type":"page","link":"https:\/\/astro.wku.edu\/bell_wordpress\/?page_id=1022","title":{"rendered":"Bell SNR Calculator"},"content":{"rendered":"\n<p>We use <a href=\"https:\/\/mirametrics.com\/apphot_optimizer_mvn.php\">https:\/\/mirametrics.com\/apphot_optimizer_mvn.php<\/a> for a high-accuracy SNR calculator.  We use the values below for the camera, scope, and site info (on a typical &#8220;clear&#8221; night):<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/astro.wku.edu\/bell_wordpress\/wp-content\/uploads\/2025\/04\/image-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"653\" height=\"493\" src=\"https:\/\/astro.wku.edu\/bell_wordpress\/wp-content\/uploads\/2025\/04\/image-1.png\" alt=\"\" class=\"wp-image-1026\" srcset=\"https:\/\/astro.wku.edu\/bell_wordpress\/wp-content\/uploads\/2025\/04\/image-1.png 653w, https:\/\/astro.wku.edu\/bell_wordpress\/wp-content\/uploads\/2025\/04\/image-1-300x226.png 300w, https:\/\/astro.wku.edu\/bell_wordpress\/wp-content\/uploads\/2025\/04\/image-1-624x471.png 624w\" sizes=\"auto, (max-width: 653px) 100vw, 653px\" \/><\/a><\/figure>\n\n\n\n<p>Once you input those values, make sure to plug in your object magnitude and exposure time for an SNR vs aperture size plot.<\/p>\n\n\n\n<p>Note: The values of gain, readout noise, dark current, extinction, airmass, seeing, and sky mag are chosen to be on the extreme upper-error bounds, so chances are, your data&#8217;s SNR will be higher than that estimated here.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We use https:\/\/mirametrics.com\/apphot_optimizer_mvn.php for a high-accuracy SNR calculator. We use the values below for the camera, scope, and site info (on a typical &#8220;clear&#8221; night): Once you input those values, make sure to plug in your object magnitude and exposure time for an SNR vs aperture size plot. Note: The values of gain, readout noise, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1022","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/astro.wku.edu\/bell_wordpress\/index.php?rest_route=\/wp\/v2\/pages\/1022","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astro.wku.edu\/bell_wordpress\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/astro.wku.edu\/bell_wordpress\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/astro.wku.edu\/bell_wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/astro.wku.edu\/bell_wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1022"}],"version-history":[{"count":3,"href":"https:\/\/astro.wku.edu\/bell_wordpress\/index.php?rest_route=\/wp\/v2\/pages\/1022\/revisions"}],"predecessor-version":[{"id":1028,"href":"https:\/\/astro.wku.edu\/bell_wordpress\/index.php?rest_route=\/wp\/v2\/pages\/1022\/revisions\/1028"}],"wp:attachment":[{"href":"https:\/\/astro.wku.edu\/bell_wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}