{"id":368604,"date":"2017-09-04T07:15:00","date_gmt":"2017-09-04T11:15:00","guid":{"rendered":"http:\/\/spaceweekly.com\/?guid=bb7f07e65c14fabe4858becce391f925"},"modified":"2017-09-04T07:15:00","modified_gmt":"2017-09-04T11:15:00","slug":"3122-florence","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=368604","title":{"rendered":"3122 Florence"},"content":{"rendered":"

\t\t\t\t\t<\/p>\n

\nOn 1 September 2017, at 12:05 GMT (14:05 CEST), the rocky near-Earth asteroid 3122 Florence made a relatively close approach to Earth, passing by at 7 060 160 km, or about 18.4 lunar distances.\n<\/p>\n

\nThis near-Earth object does not often come so close: the asteroid had last been similarly close in 1930, and will not be really close again until 2057. While it usually passes us at a safe distance, orbital disturbances in the (distant) future could bring it closer, and the size of the object is such that it could be of future impact concern.\n<\/p>\n

\nAstro-photographer Marco Langbroek, based in Leiden, the Netherlands, obtained this image of Florence on Saturday evening. He writes:\n<\/p>\n

\n\u201cFlorence became quite bright during this close pass, and was visible in binoculars at a maximum brightness of about magnitude +8.7 just before the moment of closest approach.\u201d\n<\/p>\n

\n\u201cAbout 1.5 days after the moment of closest approach, near local midnight of September 2-3, I imaged the fast-moving asteroid from Leiden with my Celestron C6 telescope. It was about mag +9.1 at that time. This stacked image was made from 87 images (each an exposure of 10 seconds with a 5 second interval) taken over a 17-minute period between 22:31:32 – 22:48:47 UTC on 2 September.\u201d\n<\/p>\n

\n\u201cThe asteroid was at a distance of 0.048 Astronomical Units at that time and moving fast through Delphinus, at an angular speed of about 22".5 per minute.\u201d\n<\/p>\n

\nAccess more details and a movie of the flyby via Marco’s blog, SatTrackCam Leiden<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

<\/p>\n

\nOn 1 September 2017, at 12:05 GMT (14:05 CEST), the rocky near-Earth asteroid 3122 Florence made a relatively close approach to Earth, passing by at 7 060 160 km, or about 18.4 lunar distances.\n<\/p>\n

\nThis near-Earth object does not often come so close: the asteroid had last been similarly close in 1930, and will not be really close again until 2057. While it usually passes us at a safe distance, orbital disturbances in the (distant) future could bring it closer, and the size of the object is such that it could be of future impact concern.\n<\/p>\n

\nAstro-photographer Marco Langbroek, based in Leiden, the Netherlands, obtained this image of Florence on Saturday evening. He writes:\n<\/p>\n

\n“Florence became quite bright during this close pass, and was visible in binoculars at a maximum brightness of about magnitude +8.7 just before the moment of closest approach.”\n<\/p>\n

\n“About 1.5 days after the moment of closest approach, near local midnight of September 2-3, I imaged the fast-moving asteroid from Leiden with my Celestron C6 telescope. It was about mag +9.1 at that time. This stacked image was made from 87 images (each an exposure of 10 seconds with a 5 second interval) taken over a 17-minute period between 22:31:32 – 22:48:47 UTC on 2 September.”\n<\/p>\n

\n“The asteroid was at a distance of 0.048 Astronomical Units at that time and moving fast through Delphinus, at an angular speed of about 22″.5 per minute.”\n<\/p>\n

\nAccess more details and a movie of the flyby via Marco’s blog, SatTrackCam Leiden<\/a>.<\/p>\n","protected":false},"author":5,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-368604","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-multimedia"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/368604","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=368604"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/368604\/revisions"}],"predecessor-version":[{"id":368605,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/368604\/revisions\/368605"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=368604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=368604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=368604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}