{"id":2256,"date":"2013-05-12T22:38:28","date_gmt":"2013-05-12T22:38:28","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=2256"},"modified":"2013-05-12T22:38:28","modified_gmt":"2013-05-12T22:38:28","slug":"planet-hunter-citizen-scientists-confirmed-exoplanet-in-stars-habitable-zone","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=2256","title":{"rendered":"Planet Hunter citizen scientists confirmed exoplanet in star&#8217;s habitable zone"},"content":{"rendered":"<p>Earlier this year participants in the\u00a0<a href=\"http:\/\/www.planethunters.org\/\">Planet Hunters<\/a> citizen science project<\/p>\n<blockquote><p>confirmed with 99.9 percent confidence the discovery of a Jupiter-sized planet called PH2b orbiting within the \u201chabitable zone\u201d of its star, the range where earth-like planets could have liquid water and possibly sustain life. The researchers also announced 42 new planet candidates, including 20 located in the habitable zone of their respective stars.<\/p><\/blockquote>\n<p>&#8211; <a href=\"http:\/\/www.yalescientific.org\/2013\/05\/planet-hunters-project-confirms-a-new-planet-in-the-habitable-zone\/\">Planet Hunters Project Confirms a New Planet in the \u201cHabitable Zone\u201d &#8211; Yale Scientific Magazine<\/a>.<\/p>\n<p>Participants in the project examine data from the\u00a0<a href=\"http:\/\/kepler.nasa.gov\/\">Kepler<\/a> space observatory, which monitors the light from over 100,000 stars simultaneously to look for dimming when a planet passes in front of the star as seen from earth.<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"aligncenter\" alt=\"With_sun_spot\" src=\"http:\/\/www.planethunters.org\/images\/science\/with_sun_spot.jpg?1364821012\" \/><em>Planets transiting across the face of a star will dim its light output. <\/em><\/p>\n<p>While the Kepler group have software to find such dimming from the planet transits across the face of stars, there are significant advantages of humans examining the light data directly<\/p>\n<blockquote><p>Citizen scientists working on Planet Hunters, on the other hand, can consider transits on a case-by-case basis, and can visually detect planets which produce fewer dips in the light-curve; these are the planets with a wider orbit and a longer orbital period that Kepler algorithms often overlook. Nine of the recent planet candidates have orbital periods over 400 days, and most have periods longer than 100 days.<\/p>\n<p>\u201cI didn\u2019t expect that volunteers would be able to find a significant number of planets that the Kepler computers couldn\u2019t. Everything found by volunteers causes Kepler to improve their algorithms,\u201d Professor Fischer added.<\/p><\/blockquote>\n<p><a href=\"http:\/\/blog.planethunters.org\/2010\/12\/29\/transits-examples\/?lang=en\" target=\"_blank\">Examples<\/a> of a Kepler data for a planetary transit:<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/blog.planethunters.org\/2010\/12\/29\/transits-examples\/?lang=en\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" title=\"SPH10102031\" alt=\"SPH10102031\" src=\"http:\/\/blogs.zooniverse.org\/planethunters\/files\/2010\/12\/SPH10102031-300x203.png\" width=\"300\" height=\"203\" \/><\/a> <a href=\"http:\/\/blog.planethunters.org\/2010\/12\/29\/transits-examples\/?lang=en\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" title=\"SPH10102031b\" alt=\"SPH10102031b\" src=\"http:\/\/blogs.zooniverse.org\/planethunters\/files\/2010\/12\/SPH10102031b-300x204.png\" width=\"300\" height=\"204\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Earlier this year participants in the\u00a0Planet Hunters citizen science project confirmed with 99.9 percent confidence the discovery of a Jupiter-sized planet called PH2b orbiting within the \u201chabitable zone\u201d of its star, the range where earth-like planets could have liquid water and possibly sustain life. The researchers also announced 42 new planet candidates, including 20 located &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=2256\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Planet Hunter citizen scientists confirmed exoplanet in star&#8217;s habitable zone<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[12,46,14],"tags":[],"class_list":["post-2256","post","type-post","status-publish","format-standard","hentry","category-astronomy","category-exoplanets","category-space-participation"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-Ao","jetpack-related-posts":[{"id":8239,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8239","url_meta":{"origin":2256,"position":0},"title":"Planet Hunters citizen science paper reports on 14 new planet candidates","author":"TopSpacer","date":"July 3, 2014","format":false,"excerpt":"Another paper based on analysis done by citizen scientist contributors to the\u00a0Planet Hunters\u00a0program has been accepted by a scientific journal:\u00a0Latest Science Paper Accepted for Publication: The First Kepler Seven Planet Candidate System and 13 Other Planet Candidates from the Kepler Archival Data -\u00a0Planet Hunters We at Planet Hunters are happy\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":5026,"url":"https:\/\/hobbyspace.com\/Blog\/?p=5026","url_meta":{"origin":2256,"position":1},"title":"Citizen scientists spot 14 exoplanet candidates &#8211; including 7th in first 7-planet system","author":"TopSpacer","date":"October 23, 2013","format":false,"excerpt":"The\u00a0Planet Hunters\u00a0citizen science project has submitted a paper to the Astronomical Journal reporting on their discovery of 14 planet candidates in the Kepler space observatory data:\u00a0Seventh heaven with our sixth exoplanet paper - Planet Hunters. See the outline here\u00a0of how the Planet Hunters project takes advantage of human pattern recognition\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7397,"url":"https:\/\/hobbyspace.com\/Blog\/?p=7397","url_meta":{"origin":2256,"position":2},"title":"Kepler space telescope finds first earth-size planet in habitable zone","author":"TopSpacer","date":"April 18, 2014","format":false,"excerpt":"An announcement from the NASA Kepler mission: NASA's Kepler Telescope Discovers First Earth-Size Planet in 'Habitable Zone' Using NASA's Kepler Space Telescope, astronomers have discovered the first Earth-size planet orbiting a star in the \"habitable zone\" -- the range of distance from a star where liquid water might pool on\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"PIA18000_ip","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/04\/PIA18000_ip-1024x575.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":1728,"url":"https:\/\/hobbyspace.com\/Blog\/?p=1728","url_meta":{"origin":2256,"position":3},"title":"Kepler finds smallest exoplanets yet within the habitable zone of a star","author":"TopSpacer","date":"April 18, 2013","format":false,"excerpt":"The latest results from the Kepler observatory: NASA's Kepler Discovers its Smallest 'Habitable Zone' Planets to Date MOFFETT FIELD, Calif. -- NASA's Kepler mission has discovered two new planetary systems that include three super-Earth-size planets in the \"habitable zone,\" the range of distance from a star where the surface temperature\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"A diagram showing the planets found by Kepler in the ","src":"https:\/\/i0.wp.com\/www.nasa.gov\/images\/content\/742730main_lineup-1-refl_673-2.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":8846,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8846","url_meta":{"origin":2256,"position":4},"title":"Citizens science: Planet Hunters 2.0","author":"TopSpacer","date":"September 19, 2014","format":false,"excerpt":"With the revived Kepler\u00a0space observatory once again looking\u00a0for planets orbiting other stars, the citizens science program\u00a0Planet Hunters\u00a0is graduating to Planet Hunters 2.0:\u00a0A Brand New Planet Hunters\u00a0-\u00a0Planet Hunters On December 16, 2010, the Zooniverse launched Planet Hunters to enlist the public\u2019s help to search for extrasolar planets (exoplanets) in the data\u2026","rel":"","context":"In &quot;Exoplanets&quot;","block_context":{"text":"Exoplanets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=46"},"img":{"alt_text":"Kepler's Second Light: How K2 Will Work","src":"https:\/\/i0.wp.com\/www.nasa.gov\/sites\/default\/files\/styles\/673xvariable_height\/public\/k2_explained_25nov_story_0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3028,"url":"https:\/\/hobbyspace.com\/Blog\/?p=3028","url_meta":{"origin":2256,"position":5},"title":"Three planets detected in habitable zone of nearby star &#8211; ESO","author":"TopSpacer","date":"June 25, 2013","format":false,"excerpt":"The European Southern Observatory (ESO) has released the results of\u00a0 a study of the star Gliese 667C showing that at least 6 planets orbit around it and that three of these are rocky planets (called \"super-Earths because they are more massive than earth) within its habitable zone. (The planets are\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/jY97FrKHCfc\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/2256","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2256"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/2256\/revisions"}],"predecessor-version":[{"id":2257,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/2256\/revisions\/2257"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2256"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2256"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}