{"id":27812,"date":"2020-06-10T01:00:08","date_gmt":"2020-06-10T11:00:08","guid":{"rendered":"http:\/\/darkerview.com\/wordpress\/?p=27812"},"modified":"2020-07-01T20:26:19","modified_gmt":"2020-07-02T06:26:19","slug":"the-hercules-cluster","status":"publish","type":"post","link":"https:\/\/darkerview.com\/wordpress\/?p=27812","title":{"rendered":"The Hercules Cluster"},"content":{"rendered":"\n<p>The <a href=\"http:\/\/www.darkerview.com\/scripts\/query.php?M13\">Hercules Cluster<\/a> is one of the best known, and as you would expect, one of the most beautiful clusters to be seen in a small telescope. Also known as <a href=\"https:\/\/en.wikipedia.org\/wiki\/Messier_13\">M13<\/a> this is a rich globular cluster with several hundred thousand stars it lies about 25,000 light years away in the constellation Hercules.<\/p>\n\n\n\n<p>The cluster is always worth stopping by, whatever size telescope you are using.  If I am using a larger &#8216;scope I might try to locate the small galaxy <a href=\"http:\/\/www.darkerview.com\/scripts\/query.php?NGC6207\">NGC6207<\/a> located about \u00bd\u00b0 to the northeast (upper left).  If I am using an even larger &#8216;scope like my 18&#8243; I can also try for the challenging <a href=\"http:\/\/www.darkerview.com\/scripts\/query.php?IC4617\">IC4617<\/a> that lies halfway between NGC6207 and the cluster.<\/p>\n\n\n\n<p>The image here is a luminance image only, taken through a filter that blocks IR and allows the remainder of the visible spectrum through to the detector.  To get allow capture of the fainter stars while not overexposing the core a range of exposures from 10 seconds to five minutes were combined to create the image seen here&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/darkerview.com\/wordpress\/?attachment_id=27811\"><img decoding=\"async\" loading=\"lazy\" width=\"900\" height=\"900\" src=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2020\/05\/M13-Lum-8x10s-4x60s-3x180s-3x300s-20200522.jpg\" alt=\"M13, The Hercules cluster\" class=\"wp-image-27811\" srcset=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2020\/05\/M13-Lum-8x10s-4x60s-3x180s-3x300s-20200522.jpg 900w, https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2020\/05\/M13-Lum-8x10s-4x60s-3x180s-3x300s-20200522-200x200.jpg 200w, https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2020\/05\/M13-Lum-8x10s-4x60s-3x180s-3x300s-20200522-600x600.jpg 600w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><figcaption>M13, The Hercules cluster<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The Hercules Cluster is one of the best known, and as you would expect, one of the most beautiful clusters to be seen in a small telescope. Also known as M13 this is a rich globular cluster with several hundred thousand stars it lies about 25,000 light years away in the constellation Hercules. The cluster &hellip; <a href=\"https:\/\/darkerview.com\/wordpress\/?p=27812\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;The Hercules Cluster&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":27811,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[34,260],"tags":[279,370,369,2734],"jetpack_featured_media_url":"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2020\/05\/M13-Lum-8x10s-4x60s-3x180s-3x300s-20200522.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/27812"}],"collection":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27812"}],"version-history":[{"count":3,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/27812\/revisions"}],"predecessor-version":[{"id":27842,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/27812\/revisions\/27842"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/27811"}],"wp:attachment":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}