{"id":11,"date":"2013-07-22T04:13:40","date_gmt":"2013-07-22T04:13:40","guid":{"rendered":"http:\/\/www.kandrsmith.org\/blog\/?p=11"},"modified":"2016-10-05T06:58:26","modified_gmt":"2016-10-05T06:58:26","slug":"introducing-the-pluto-science-conference-july-22-26-2013","status":"publish","type":"post","link":"https:\/\/www.kandrsmith.org\/KES\/index.php\/2013\/07\/22\/introducing-the-pluto-science-conference-july-22-26-2013\/","title":{"rendered":"Introducing the Pluto Science Conference July 22-26, 2013"},"content":{"rendered":"<p>Reposted from\u00a0 <a href=\"https:\/\/blogs.nasa.gov\/mission-ames\/2013\/07\/22\/introducing-the-pluto-science-conference-jul-22-26-2013\/\">https:\/\/blogs.nasa.gov\/mission-ames\/2013\/07\/22\/introducing-the-pluto-science-conference-jul-22-26-2013\/<\/a>.<\/p>\n<p>The mind of a scientist understands, embraces, and executes the scientific method, the process by which an idea is created, then tested by experiment or model, validated or refuted, and then, when validated, culminates in the description of the results to the larger community through a publication. The cycle begins again, sometimes building on previously published work, or in some cases, the birth of new ideas to the scene, most likely inspired by previous knowledge.<\/p>\n<p>A key component to a scientist\u2019s work is the attendance and interaction with colleagues at scientific conferences. At such gatherings we can see examples of the scientific method in a multitude of stages: the birth of a new idea, the suggestion of methods to carry-out the experiment or computation, a presentation that disproves an approach requiring the scientist to start anew, through the description of the results of the recent experiment or computation.<\/p>\n<p>~150 people are to gather this week at the Johns Hopkins University Applied Physics Laboratory in Laurel, MD to share ideas, debate hypotheses, and explain experiments related to the emissary from our Solar System\u2019s Third Zone, the dwarf planet Pluto and its moons. The timing is crucial to have these conversations because in two years from now, in July 2015, NASA\u2019s New Horizons Spacecraft will do a close fly-by of the Pluto system, a system never before visited by another spacecraft. The forum provides an update of the mission and its measurement capabilities and encourages healthy dialog among theorists who have predictions, laboratory spectroscopists who can build examples of chemistry happening on these icy bodies, and observers who have been monitoring and documenting the changing nature of Pluto and its environment.<\/p>\n<p>Details about the Pluto Science Conference,\u00a0\u201cThe Pluto System on the Eve of Exploration by New Horizons: Perspectives and Predictions,\u201d can be found here at <a href=\"http:\/\/pluto.jhuapl.edu\/News-Center\/events\/2013-PlutoScienceConference\/\">http:\/\/pluto.jhuapl.edu\/News-Center\/events\/2013-PlutoScienceConference\/<\/a>.<\/p>\n<p>You can follow the New Horizons mission status at any time by visiting the New Horizons Mission Website at <a title=\"New Horizons Mission WebSite\" href=\"http:\/\/pluto.jhuapl.edu\/\" target=\"_blank\">http:\/\/pluto.jhuapl.edu\/<\/a> and <a title=\"New Horizons Mission WebSite (NASA.gov)\" href=\"http:\/\/www.nasa.gov\/mission_pages\/newhorizons\/main\/index.html\" target=\"_blank\">http:\/\/www.nasa.gov\/mission_pages\/newhorizons\/main\/index.html<\/a>.<\/p>\n<p>I\u2019ll be providing summaries of the meeting content and discussions through a series of blog posts this week. For now, I\u2019ll leave you with some things we do know about Pluto and its largest moon Charon.<\/p>\n<figure id=\"attachment_13\" aria-describedby=\"caption-attachment-13\" style=\"width: 505px\" class=\"wp-caption aligncenter\"><a href=\"\/KES\/wp-content\/uploads\/2016\/08\/size_pluto_charon_wrtusa.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-13\" src=\"http:\/\/www.kandrsmith.org\/blog\/wp-content\/uploads\/2016\/08\/size_pluto_charon_wrtusa-300x180.jpg\" alt=\"size_pluto_charon_wrtusa\" width=\"505\" height=\"303\" srcset=\"https:\/\/www.kandrsmith.org\/KES\/wp-content\/uploads\/2016\/08\/size_pluto_charon_wrtusa-300x180.jpg 300w, https:\/\/www.kandrsmith.org\/KES\/wp-content\/uploads\/2016\/08\/size_pluto_charon_wrtusa.jpg 336w\" sizes=\"auto, (max-width: 505px) 100vw, 505px\" \/><\/a><figcaption id=\"caption-attachment-13\" class=\"wp-caption-text\">The diameters of Pluto &amp; Charon shown with respect to the USA for scale.<\/figcaption><\/figure>\n<p>What do we know about Pluto so far?<\/p>\n<ul>\n<li>Highly elliptical (e = 0.25), Highly inclined (i = 17 deg), 248 year orbit<\/li>\n<li>\u00a0Rotational period of 6.387230 days<\/li>\n<li>\u00a0Small (diameter = 2328 \u00b1 42 km), Rock\/Ice object (\u201cIcy Dwarf\u201d)<\/li>\n<li>\u00a0Density is 2.03 \u00b1 0.06 g cm<sup>-3<\/sup>, Mass = 0.0022 M<sub>Earth<\/sub><\/li>\n<li>\u00a0Bright surface frosts of N<sub>2<\/sub>, CH<sub>4<\/sub>, CO, and C<sub>2<\/sub>H<sub>6<\/sub>\u00a0 produce albedo of ~55%<\/li>\n<li>\u00a0Highly variegated surface (bright and dark regions)<\/li>\n<li>\u00a0Reddish in color, probably due to surface organics<\/li>\n<li>\u00a0Tenuous, variable atmosphere (mostly N<sub>2<\/sub>; 2-10 \u00b5bars at the surface &amp; going up)<\/li>\n<\/ul>\n<p>What do we know about Charon?<\/p>\n<ul>\n<li>Discovered, by accident, in July 1978 by James Christy (USNO)<\/li>\n<li>\u00a0In circular orbit ~19,573 km from Pluto, with a 6.3872273 day period<\/li>\n<li>\u00a0Tidally-locked spin period (i.e., spin-orbit synchronous)<\/li>\n<li>\u00a0Diameter is 1212 \u00b1 3 km (about half of Pluto\u2019s Diameter: \u201cBinary Planet\u201d)<\/li>\n<li>\u00a0Density is 1.66 \u00b1 0.06 g cm<sup>-3<\/sup> (vs 2.03 \u00b1 0.06 g cm<sup>-3<\/sup> for Pluto)<\/li>\n<li>\u00a0Surface has crystalline H<sub>2<\/sub>O-ice and NH<sub>3<\/sub>-hydrate (recent?)<\/li>\n<li>\u00a0Average albedo ~35%, neutral color (variegation change over time?)<\/li>\n<li>\u00a0Average T ~ 50 K, low thermal inertia (high porosity)<\/li>\n<li>\u00a0No atmosphere detected yet (~10-300x lower pressure than Pluto\u2019s)<\/li>\n<\/ul>\n<figure id=\"attachment_28\" aria-describedby=\"caption-attachment-28\" style=\"width: 460px\" class=\"wp-caption alignnone\"><a href=\"\/KES\/wp-content\/uploads\/2013\/07\/Charon_pictures_Jul22_2013_blog.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-28\" src=\"http:\/\/www.kandrsmith.org\/blog\/wp-content\/uploads\/2013\/07\/Charon_pictures_Jul22_2013_blog-300x137.png\" alt=\"Charon_pictures_Jul22_2013_blog\" width=\"460\" height=\"210\" srcset=\"https:\/\/www.kandrsmith.org\/KES\/wp-content\/uploads\/2013\/07\/Charon_pictures_Jul22_2013_blog-300x137.png 300w, https:\/\/www.kandrsmith.org\/KES\/wp-content\/uploads\/2013\/07\/Charon_pictures_Jul22_2013_blog.png 663w\" sizes=\"auto, (max-width: 460px) 100vw, 460px\" \/><\/a><figcaption id=\"caption-attachment-28\" class=\"wp-caption-text\">(left) Charon Discovery Image July 1978; (right) New Horizons\u2019 LORRI instrument spots Charon July 2013 from 6AU away.<\/figcaption><\/figure>\n<p><em>To Pluto and beyond!<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Reposted from\u00a0 https:\/\/blogs.nasa.gov\/mission-ames\/2013\/07\/22\/introducing-the-pluto-science-conference-jul-22-26-2013\/. The mind of a scientist understands, embraces, and executes the scientific method, the process by which an idea is created, then tested by experiment or model, validated or refuted, and then, when validated, culminates in the description of the results to the larger community through a publication. The cycle begins again, sometimes &hellip; <a href=\"https:\/\/www.kandrsmith.org\/KES\/index.php\/2013\/07\/22\/introducing-the-pluto-science-conference-july-22-26-2013\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Introducing the Pluto Science Conference July 22-26, 2013<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[11],"tags":[9,8],"class_list":["post-11","post","type-post","status-publish","format-standard","hentry","category-science","tag-new-horizons","tag-pluto"],"_links":{"self":[{"href":"https:\/\/www.kandrsmith.org\/KES\/index.php\/wp-json\/wp\/v2\/posts\/11","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kandrsmith.org\/KES\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kandrsmith.org\/KES\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kandrsmith.org\/KES\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kandrsmith.org\/KES\/index.php\/wp-json\/wp\/v2\/comments?post=11"}],"version-history":[{"count":0,"href":"https:\/\/www.kandrsmith.org\/KES\/index.php\/wp-json\/wp\/v2\/posts\/11\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kandrsmith.org\/KES\/index.php\/wp-json\/wp\/v2\/media?parent=11"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kandrsmith.org\/KES\/index.php\/wp-json\/wp\/v2\/categories?post=11"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kandrsmith.org\/KES\/index.php\/wp-json\/wp\/v2\/tags?post=11"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}