{"id":77,"date":"2009-09-27T09:38:34","date_gmt":"2009-09-27T16:38:34","guid":{"rendered":"http:\/\/blog.kurtlawson.com\/?p=77"},"modified":"2009-09-27T09:41:39","modified_gmt":"2009-09-27T16:41:39","slug":"star-trails","status":"publish","type":"post","link":"https:\/\/blog.kurtlawson.com\/?p=77","title":{"rendered":"Star Trails"},"content":{"rendered":"<figure id=\"attachment_87\" aria-describedby=\"caption-attachment-87\" style=\"width: 706px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-87\" title=\"Star Trails over Lake Tahoe\" src=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/tahoe_night_4311.jpg\" alt=\"Star Trails over Lake Tahoe, 2006\" width=\"706\" height=\"527\" srcset=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/tahoe_night_4311.jpg 706w, https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/tahoe_night_4311-300x223.jpg 300w\" sizes=\"(max-width: 706px) 100vw, 706px\" \/><figcaption id=\"caption-attachment-87\" class=\"wp-caption-text\">Star Trails over Lake Tahoe, 2006<\/figcaption><\/figure>\n<p>One thing I&#8217;ve found to be intriguing about night-time photography is the phenomenon of &#8220;star trails.&#8221; Star trails are created by leaving the camera shutter open for long periods of time to let the light of stars paint across the film. The effect is no different than any other long exposure side effect, with the exception that the movement represented is the rotation of the Earth rather than of the camera. Depending on the composition, this can produce some interesting results. Star trails can be seen in exposures as low as 30 seconds. However the more dramatic trails require exposures of an hour or even longer.<\/p>\n<figure id=\"attachment_88\" aria-describedby=\"caption-attachment-88\" style=\"width: 706px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-88\" title=\"An hour of the night\" src=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/tahoe_night_hour1.jpg\" alt=\"An hour of the night, Lake Tahoe, CA 2006\" width=\"706\" height=\"527\" srcset=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/tahoe_night_hour1.jpg 706w, https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/tahoe_night_hour1-300x223.jpg 300w\" sizes=\"(max-width: 706px) 100vw, 706px\" \/><figcaption id=\"caption-attachment-88\" class=\"wp-caption-text\">An hour of the night, Lake Tahoe, CA 2006<\/figcaption><\/figure>\n<figure id=\"attachment_85\" aria-describedby=\"caption-attachment-85\" style=\"width: 706px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-85\" title=\"Star Trails and Clouds\" src=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/comprehensive_004371.jpg\" alt=\"Star Trails and Clouds, Mt. Pinos, CA 2007\" width=\"706\" height=\"527\" srcset=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/comprehensive_004371.jpg 706w, https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/comprehensive_004371-300x223.jpg 300w\" sizes=\"(max-width: 706px) 100vw, 706px\" \/><figcaption id=\"caption-attachment-85\" class=\"wp-caption-text\">Star Trails and Clouds, Mt. Pinos, CA 2007<\/figcaption><\/figure>\n<figure id=\"attachment_86\" aria-describedby=\"caption-attachment-86\" style=\"width: 706px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-86\" title=\"Astronomers and Star Trails\" src=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/IMG_56371.jpg\" alt=\"Astronomers and Star Trails, Mt. Pinos, CA, September 2008\" width=\"706\" height=\"471\" srcset=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/IMG_56371.jpg 706w, https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/IMG_56371-300x200.jpg 300w\" sizes=\"(max-width: 706px) 100vw, 706px\" \/><figcaption id=\"caption-attachment-86\" class=\"wp-caption-text\">Astronomers and Star Trails, Mt. Pinos, CA, September 2008<\/figcaption><\/figure>\n<figure id=\"attachment_84\" aria-describedby=\"caption-attachment-84\" style=\"width: 706px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-84\" title=\"Star Trails over Providenciales\" src=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/comprehensive_004261.jpg\" alt=\"Star Trails over Providenciales with half Moon, Turks and Caicos Islands November 2006\" width=\"706\" height=\"527\" srcset=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/comprehensive_004261.jpg 706w, https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/comprehensive_004261-300x223.jpg 300w\" sizes=\"(max-width: 706px) 100vw, 706px\" \/><figcaption id=\"caption-attachment-84\" class=\"wp-caption-text\">Star Trails over Providenciales with half Moon, Turks and Caicos Islands November 2006<\/figcaption><\/figure>\n<figure id=\"attachment_89\" aria-describedby=\"caption-attachment-89\" style=\"width: 706px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-89\" title=\"Star Trails over the Caribbean\" src=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/turks_0751.jpg\" alt=\"Star Trails over the Caribbean, Turks and Caicos Islands November 2006\" width=\"706\" height=\"527\" srcset=\"https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/turks_0751.jpg 706w, https:\/\/blog.kurtlawson.com\/wp-content\/uploads\/2009\/09\/turks_0751-300x223.jpg 300w\" sizes=\"(max-width: 706px) 100vw, 706px\" \/><figcaption id=\"caption-attachment-89\" class=\"wp-caption-text\">Star Trails over the Caribbean, Turks and Caicos Islands November 2006<\/figcaption><\/figure>\n<p>This short sequence of frames shows the progression of star trails in exposures of 5 to 30 minutes.<\/p>\n<p><center><object width=\"640\" height=\"385\"><param name=\"movie\" value=\"http:\/\/www.youtube.com\/v\/Kj1vs2_bX5E&#038;hl=en&#038;fs=1&#038;rel=0\"><\/param><param name=\"allowFullScreen\" value=\"true\"><\/param><param name=\"allowscriptaccess\" value=\"always\"><\/param><\/object><\/center><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Star Trails leave streaks across the night sky<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-77","post","type-post","status-publish","format-standard","hentry","category-night"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=\/wp\/v2\/posts\/77","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=77"}],"version-history":[{"count":4,"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=\/wp\/v2\/posts\/77\/revisions"}],"predecessor-version":[{"id":93,"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=\/wp\/v2\/posts\/77\/revisions\/93"}],"wp:attachment":[{"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=77"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=77"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.kurtlawson.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=77"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}