{"id":95426,"date":"2023-11-06T13:39:28","date_gmt":"2023-11-06T18:39:28","guid":{"rendered":"https:\/\/www.sci.news\/?p=95426"},"modified":"2023-11-06T13:39:28","modified_gmt":"2023-11-06T18:39:28","slug":"kepler-385-exoplanets-12423","status":"publish","type":"post","link":"https:\/\/www.sci.news\/astronomy\/kepler-385-exoplanets-12423.html","title":{"rendered":"Kepler-385 Hosts Seven Large Exoplanets, Astronomers Say"},"content":{"rendered":"<p><strong>A new analysis of data from NASA\u2019s retired Kepler space telescope has revealed a system of seven giant planets around Kepler-385.<\/strong><\/p>\n<div id=\"attachment_95427\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.sci.news\/images\/enlarge11\/image_12423e-Kepler-385.jpg\"><img aria-describedby=\"caption-attachment-95427\" loading=\"lazy\" class=\"wp-image-95427 size-full\" src=\"https:\/\/www.sci.news\/images\/2023\/11\/image_12423-Kepler-385.jpg\" alt=\"An artist\u2019s concept of Kepler-385, the seven-planet system revealed in a new catalog of planet candidates discovered by NASA\u2019s Kepler space telescope. Image credit: NASA \/ Daniel Rutter.\" width=\"580\" height=\"326\" srcset=\"https:\/\/www.sci.news\/images\/2023\/11\/image_12423-Kepler-385.jpg 580w, https:\/\/www.sci.news\/images\/2023\/11\/image_12423-Kepler-385-300x169.jpg 300w, https:\/\/www.sci.news\/images\/2023\/11\/image_12423-Kepler-385-195x110.jpg 195w\" sizes=\"(max-width: 580px) 100vw, 580px\" \/><\/a><p id=\"caption-attachment-95427\" class=\"wp-caption-text\">An artist\u2019s concept of Kepler-385, the seven-planet system revealed in a new catalog of planet candidates discovered by NASA\u2019s Kepler space telescope. Image credit: NASA \/ Daniel Rutter.<\/p><\/div>\n<p><a href=\"http:\/\/simbad.cds.unistra.fr\/simbad\/sim-id?Ident=Kepler-385\" target=\"_blank\" rel=\"noopener\">Kepler-385<\/a> is an F-type star located 4,944 light-years away in the constellation of Cygnus.<\/p>\n<p>Also known as KIC 11968463, KOI-2433 or TIC 27082352, the star is about 10% larger and 5% hotter than the Sun.<\/p>\n<p>The star hosts seven planets smaller than Neptune: Kepler-385b, c, d, e, f, g, and h.<\/p>\n<p>The two inner planets, both slightly larger than Earth, are probably rocky and may have thin atmospheres.<\/p>\n<p>The other five planets are larger &#8212; each with a radius about twice the size of Earth\u2019s &#8212; and expected to be enshrouded in thick atmospheres.<\/p>\n<p>This planetary system is among the highlights of a new Kepler catalog that contains almost 4,400 planet candidates, including more than 700 multi-planet systems.<\/p>\n<p>It is one of only a few planetary systems known to contain more than six verified planets or planet candidates.<\/p>\n<p>\u201cWe\u2019ve assembled the most accurate list of Kepler planet candidates and their properties to date,\u201d said Dr. Jack Lissauer, an astronomer at NASA\u2019s Ames Research Center.<\/p>\n<p>\u201cNASA\u2019s Kepler mission has discovered the majority of known exoplanets, and this new catalog will enable astronomers to learn more about their characteristics.\u201d<\/p>\n<p>While the Kepler mission\u2019s final catalogs focused on producing lists optimized to measure how common planets are around other stars, Dr. Lissauer and colleagues were able to produce a comprehensive list of accurate information about each of the systems, making discoveries like Kepler-385 possible.<\/p>\n<p>The new catalog uses improved measurements of stellar properties and calculates more accurately the path of each transiting planet across its host star.<\/p>\n<p>This combination illustrates that when a star hosts several transiting planets, they typically have more circular orbits than when a star hosts only one or two.<\/p>\n<p>After Kepler already showed us there are more planets than stars, the new study paints a more detailed picture of what each of those planets and their home systems look like, giving us a better view of the many worlds beyond our Solar System.<\/p>\n<p>\u201cOur primary catalog lists all known Kepler planet candidates that orbit and transit only one star,\u201d the astronomers said.<\/p>\n<p>\u201cFor completeness, we also provide an abbreviated listing of the properties of the two dozen non-transiting planets that have been identified around stars that host transiting planets discovered by Kepler.\u201d<\/p>\n<p>The team\u2019s <a href=\"https:\/\/arxiv.org\/abs\/2311.00238\" target=\"_blank\" rel=\"noopener\">paper<\/a> will be published in the <a href=\"https:\/\/iopscience.iop.org\/journal\/2632-3338\" target=\"_blank\" rel=\"noopener\"><em>Planetary Science Journal<\/em><\/a>.<\/p>\n<p><span style=\"color: #808080;\">_____<\/span><\/p>\n<p><span style=\"color: #808080;\">Jack J. Lissauer <em>et al<\/em>. 2023. Updated Catalog of Kepler Planet Candidates: Focus on Accuracy and Orbital Periods. <em>Planetary Science Journal<\/em>, in press; arXiv: 2311.00238<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A new analysis of data from NASA\u2019s retired Kepler space telescope has revealed a system of seven giant planets around Kepler-385.<\/p>\n","protected":false},"author":3,"featured_media":95428,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[6,1324],"tags":[113,120,19335,19336,19337,19338,19339,19340,19341,19342,28],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Kepler-385 Hosts Seven Large Exoplanets, Astronomers Say | Sci.News<\/title>\n<meta name=\"description\" content=\"A new analysis of data from NASA\u2019s retired Kepler space telescope has revealed a system of seven giant planets around Kepler-385.\" \/>\n<meta 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