{"id":4,"date":"2022-05-23T18:27:49","date_gmt":"2022-05-23T18:27:49","guid":{"rendered":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/?p=4"},"modified":"2022-05-23T18:27:49","modified_gmt":"2022-05-23T18:27:49","slug":"a-circumhorizontal-arc-over-ohio","status":"publish","type":"post","link":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/?p=4","title":{"rendered":"A Circumhorizontal Arc Over Ohio"},"content":{"rendered":"<p>\tWhy would clouds appear to be different colors? The reason here is that ice crystals in distant cirrus clouds are acting like little floating prisms.  Sometimes known as a fire rainbow for its flame-like appearance, a circumhorizon arc lies parallel to the horizon. For a circumhorizontal arc to be visible, the Sun must be at least 58 degrees high in a sky where cirrus clouds are present.  Furthermore, the numerous, flat, hexagonal ice-crystals that compose the cirrus cloud must be aligned horizontally to properly refract sunlight in a collectively similar manner.  Therefore, circumhorizontal arcs are quite unusual to see.  This circumhorizon display was photographed through a polarized lens above Dublin, Ohio last week.   Apologies: Earlier, APOD misidentified this phenomenon as iridescence.<\/p>\n<p>\tTodd Sladoje (2009-05-12)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Why would clouds appear to be different colors? The reason here is that ice crystals in distant cirrus clouds are acting like little floating prisms. Sometimes known as a fire rainbow for its flame-like appearance, a circumhorizon arc lies parallel to the horizon. For a circumhorizontal arc to be visible, the Sun must be at [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":5,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/index.php?rest_route=\/wp\/v2\/posts\/4"}],"collection":[{"href":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4"}],"version-history":[{"count":0,"href":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/index.php?rest_route=\/wp\/v2\/posts\/4\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/index.php?rest_route=\/wp\/v2\/media\/5"}],"wp:attachment":[{"href":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/api.main-bvxea6i-z6d5mdnrun4va.ca-1.platformsh.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}