{"id":964,"date":"2022-11-10T16:08:40","date_gmt":"2022-11-10T15:08:40","guid":{"rendered":"http:\/\/www.astrokutak.hr\/?page_id=964"},"modified":"2022-11-11T12:28:25","modified_gmt":"2022-11-11T11:28:25","slug":"snimanje-sunca-u-h-alfa-spektru","status":"publish","type":"page","link":"http:\/\/www.astrokutak.hr\/en\/snimanje-sunca-u-h-alfa-spektru\/","title":{"rendered":"Solar imaging with H-alpha filter"},"content":{"rendered":"<div class=\"row\"><div class=\"column one-third\" style=\"text-align:left;\"><figure ><img decoding=\"async\" src=\"http:\/\/www.astrokutak.hr\/wp-content\/uploads\/2022\/11\/2022-05-15-1426_7-U-L-Sun_Halpha_ZWO-ASI178MM_g3_ap5015ORIGRW.jpg\" alt=\"\" \/><\/figure><\/div><div class=\"column one-third\" style=\"text-align:left;\"><div class=\"text-block\" style=\"text-align:left;\">\n<p>Part of the Sun taken with Baader D-ERF, TEC 140FL, Baader TZ-3, Solar Spectrum RG38 0.5A and ZWO ASI 178MM.<br \/>\nWith the help of the FireCapture program, the camera recorded 1000 frames in video format. Such a raw video format goes to further processing.<br \/>\nThe second step is stacking a certain percentage of good frames into one final image. The AutoStakkert program was used for this process which analyzes the recording quality and shows how many good or bad frames you have. You select the highest percentage of good frames (in this case 60%) and the program merges those frames into one final image.<br \/>\nSuch an image was processed in the Registax6 program to obtain the sharpness of certain details.<br \/>\nThen came the final processing in Photoshop where color, contrast was added, darker areas were \"extracted\" and similar final modifications.<br \/>\nOn the left is a raw photo from the merged 60% of the best frames.<br \/>\nOn the right is the final product of the image of the Sun with the chromosphere, nice little prominences, a couple of filaments, a few sunspots and the structure of the chromosphere.<\/p>\n<\/div><\/div><div class=\"column one-third last-column\" style=\"text-align:left;\"><figure ><img decoding=\"async\" src=\"http:\/\/www.astrokutak.hr\/wp-content\/uploads\/2022\/11\/2022-05-15-1426_7-U-L-Sun_Halpha_ZWO-ASI178MM_g3_ap5015r6ar.jpg\" alt=\"\" \/><\/figure><\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-fullwidth.php","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-964","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/www.astrokutak.hr\/en\/wp-json\/wp\/v2\/pages\/964","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.astrokutak.hr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.astrokutak.hr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.astrokutak.hr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.astrokutak.hr\/en\/wp-json\/wp\/v2\/comments?post=964"}],"version-history":[{"count":26,"href":"http:\/\/www.astrokutak.hr\/en\/wp-json\/wp\/v2\/pages\/964\/revisions"}],"predecessor-version":[{"id":1017,"href":"http:\/\/www.astrokutak.hr\/en\/wp-json\/wp\/v2\/pages\/964\/revisions\/1017"}],"wp:attachment":[{"href":"http:\/\/www.astrokutak.hr\/en\/wp-json\/wp\/v2\/media?parent=964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}