{"id":13506,"date":"2016-11-14T19:03:38","date_gmt":"2016-11-15T00:03:38","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=13506"},"modified":"2016-11-14T19:03:38","modified_gmt":"2016-11-15T00:03:38","slug":"cassini-the-watercolor-swirls-of-saturns-north-pole-the-flow-of-methane-clouds-on-titan","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=13506","title":{"rendered":"Cassini: The watercolor swirls of Saturn&#8217;s north pole &#038; the flow of methane clouds on Titan"},"content":{"rendered":"<p>New views from <a href=\"http:\/\/www.nasa.gov\/cassini\" data-cke-saved-href=\"http:\/\/www.nasa.gov\/cassini\"><span class=\"scayt-misspell-word\" data-scayt-word=\"cassini\" data-scayt-lang=\"en_US\">Cassini<\/span><\/a>\u00a0of the bands and swirls of <a href=\"https:\/\/en.wikipedia.org\/wiki\/Saturn\" target=\"_blank\">Saturn<\/a>&#8216;s north pole and of the clouds of Saturn&#8217;s moon\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Titan_(moon)\" target=\"_blank\">Titan<\/a>:<\/p>\n<p style=\"text-align: center;\"><strong><a href=\"http:\/\/www.jpl.nasa.gov\/spaceimages\/details.php?id=PIA20507\" target=\"_d\">Saturn&#8217;s &#8216;Watercolor&#8217; Swirls<\/a><\/strong><\/p>\n<p><a href=\"http:\/\/www.nasa.gov\/sites\/default\/files\/thumbnails\/image\/pia20507_1041.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"13507\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=13507\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/11\/pia20507_10411.jpg\" data-orig-size=\"1041,1041\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"pia20507_10411\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/11\/pia20507_10411-1024x1024.jpg\" class=\"aligncenter wp-image-13507 size-large\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/11\/pia20507_10411-1024x1024.jpg\" alt=\"pia20507_10411\" width=\"520\" height=\"520\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/11\/pia20507_10411-1024x1024.jpg 1024w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/11\/pia20507_10411-150x150.jpg 150w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/11\/pia20507_10411-300x300.jpg 300w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/11\/pia20507_10411-768x768.jpg 768w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/11\/pia20507_10411.jpg 1041w\" sizes=\"auto, (max-width: 520px) 100vw, 520px\" \/><\/a><\/p>\n<p>Saturn&#8217;s north polar region displays its beautiful bands and swirls, which somewhat resemble the brushwork in a watercolor painting.<\/p>\n<p>Each latitudinal band represents air flowing at different speeds, and clouds at different heights, compared to neighboring bands. Where they meet and flow past each other, the bands&#8217; interactions produce many eddies and swirls.<\/p>\n<p>The northern polar region of Saturn is dominated by the famous hexagon shape (see PIA11682) which itself circumscribes the northern polar vortex \u2013 seen as a dark spot at the planet\u2019s pole in the above image \u2013 which is understood to the be eye of a hurricane-like storm (PIA14946).<\/p>\n<p>This view looks toward the sunlit side of the rings from about 20 degrees above the ring plane. The image was taken with the Cassini spacecraft wide-angle camera on Sept. 5, 2016 using a spectral filter which preferentially admits wavelengths of near-infrared light centered at 728 nanometers.<\/p>\n<p>The view was obtained at a distance of approximately 890,000 miles (1.4 million kilometers) from Saturn. Image scale is 53 miles (86 kilometers) per pixel.<\/p>\n<p>The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA&#8217;s Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colorado.<\/p>\n<p>For more information about the <span class=\"scayt-misspell-word\" data-scayt-word=\"Cassini-Huygens\" data-scayt-lang=\"en_US\">Cassini-Huygens<\/span> mission visit <a href=\"http:\/\/saturn.jpl.nasa.gov\/\" data-cke-saved-href=\"http:\/\/saturn.jpl.nasa.gov\/\">saturn.jpl.nasa.gov<\/a> and <a href=\"http:\/\/www.nasa.gov\/cassini\" data-cke-saved-href=\"http:\/\/www.nasa.gov\/cassini\">www.nasa.gov\/<span class=\"scayt-misspell-word\" data-scayt-word=\"cassini\" data-scayt-lang=\"en_US\">cassini<\/span><\/a>. The <span class=\"scayt-misspell-word\" data-scayt-word=\"Cassini\" data-scayt-lang=\"en_US\">Cassini<\/span> imaging team homepage is at <a href=\"http:\/\/ciclops.org\/\" data-cke-saved-href=\"http:\/\/ciclops.org\/\">ciclops.org<\/a>.<\/p>\n<p>====<\/p>\n<p style=\"text-align: center;\"><strong><a href=\"http:\/\/www.jpl.nasa.gov\/news\/news.php?feature=6670\" target=\"_d\">Watching Summer Clouds on Titan<\/a><\/strong><\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/0seT55Jk4Ko?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>NASA&#8217;s Cassini spacecraft watched clouds of methane moving across the far northern regions of Saturn&#8217;s largest moon, Titan, on Oct. 29\u00ad\u00ad\u00ad\u00ad and 30, 2016.<\/p>\n<p>Several sets of clouds develop, move over the surface and fade during the course of this movie sequence, which spans 11 hours, with one frame taken every 20 minutes. Most prominent are long cloud streaks that lie between 49 and 55 degrees north latitude. While the general region of cloud activity is persistent over the course of the observation, individual streaks appear to develop then fade. These clouds are measured to move at a speed of about 14 to 22 miles per hour (7 to 10 meters per second).<\/p>\n<p>There are also some small clouds over the region of small lakes farther north, including a bright cloud between Neagh Lacus and Punga Mare, which fade over the course of the movie. This small grouping of clouds is moving at a speed of about 0.7 to 1.4 miles per hour (1 to 2 meters per second).<\/p>\n<p>Time-lapse movies like this allow scientists to observe the dynamics of clouds as they develop, move over the surface and fade. A time-lapse movie can also help to distinguish between noise in images (for example from cosmic rays hitting the detector) and faint clouds or fog.<\/p>\n<p>In 2016, Cassini has intermittently observed clouds across the northern mid-latitudes of Titan, as well as within the north polar region &#8212; an area known to contain numerous methane\/ethane lakes and seas see <a href=\"http:\/\/photojournal.jpl.nasa.gov\/catalog\/PIA19657\">PIA19657<\/a> and <a href=\"http:\/\/photojournal.jpl.nasa.gov\/catalog\/PIA17655\">PIA17655<\/a>.\u00a0However, most of this year&#8217;s observations designed for cloud monitoring have been short snapshots taken days, or weeks, apart. This observation provides Cassini&#8217;s best opportunity in 2016 to study short-term cloud dynamics.<\/p>\n<p>Models of Titan&#8217;s climate have predicted more cloud activity during early northern summer than what Cassini has observed so far, suggesting that the current understanding of the giant moon&#8217;s changing seasons is incomplete.<\/p>\n<p>The mission will continue monitoring Titan&#8217;s weather around the 2017 summer solstice in Titan&#8217;s northern hemisphere.<\/p>\n<p>The movie was acquired using the Cassini narrow-angle camera using infrared filters to make the surface and tropospheric methane clouds visible.<\/p>\n<p>The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA&#8217;s Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colorado.<\/p>\n<p style=\"text-align: center;\">====<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" style=\"border: none;\" src=\"\/\/rcm-na.amazon-adsystem.com\/e\/cm?o=1&amp;p=12&amp;l=ur1&amp;category=echo&amp;banner=146870N94VDD8MAPHT02&amp;f=ifr&amp;linkID=1a66b7640a95795359e192e9c202c69f&amp;t=hobbyspace&amp;tracking_id=hobbyspace\" width=\"300\" height=\"250\" frameborder=\"0\" marginwidth=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>New views from Cassini\u00a0of the bands and swirls of Saturn&#8216;s north pole and of the clouds of Saturn&#8217;s moon\u00a0Titan: Saturn&#8217;s &#8216;Watercolor&#8217; Swirls Saturn&#8217;s north polar region displays its beautiful bands and swirls, which somewhat resemble the brushwork in a watercolor painting. Each latitudinal band represents air flowing at different speeds, and clouds at different heights, &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=13506\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Cassini: The watercolor swirls of Saturn&#8217;s north pole &#038; the flow of methane clouds on Titan<\/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_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[87,13],"tags":[],"class_list":["post-13506","post","type-post","status-publish","format-standard","hentry","category-et-al","category-space-science"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-3vQ","jetpack-related-posts":[{"id":2024,"url":"https:\/\/hobbyspace.com\/Blog\/?p=2024","url_meta":{"origin":13506,"position":0},"title":"Cassini spacecraft gets close-up of huge Saturn storm","author":"TopSpacer","date":"April 30, 2013","format":false,"excerpt":"NASA JPL releases imagery from the Cassini\u00a0 probe showing a huge hurricane circulating around Saturn's north pole: NASA Probe Gets Close-Up Views of Large Hurricane on Saturn PASADENA, Calif. - NASA's Cassini spacecraft has provided scientists the first close-up, visible-light views of a behemoth hurricane swirling around Saturn's north pole.\u2026","rel":"","context":"In &quot;Space Science&quot;","block_context":{"text":"Space Science","link":"https:\/\/hobbyspace.com\/Blog\/?cat=13"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/71AFyQBLhyc\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":13637,"url":"https:\/\/hobbyspace.com\/Blog\/?p=13637","url_meta":{"origin":13506,"position":1},"title":"Cassini captures great views of Saturn&#8217;s hexagonal north pole","author":"TopSpacer","date":"December 13, 2016","format":false,"excerpt":"Some recent images of Saturn's hexagon shaped cloud patter on its north pole: Cassini Beams Back First Images from New Orbit NASA's Cassini spacecraft has sent to Earth its first views of Saturn\u2019s atmosphere since beginning the latest phase of its mission. The new images show scenes from high above\u2026","rel":"","context":"In &quot;Europa, Titan, &amp; other deep space sites&quot;","block_context":{"text":"Europa, Titan, &amp; other deep space sites","link":"https:\/\/hobbyspace.com\/Blog\/?cat=98"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/12\/pia210531.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14347,"url":"https:\/\/hobbyspace.com\/Blog\/?p=14347","url_meta":{"origin":13506,"position":2},"title":"Cassini: Cloud bands streak across Saturn&#8217;s moon Titan","author":"TopSpacer","date":"May 10, 2017","format":false,"excerpt":"More good stuff from Cassini as it nears its Grand Finale. Cassini: The Grand Finale: Cloud Bands Streak Across Titan\u00a0 May 9, 2017: NASA's Cassini spacecraft captured this view of bands of bright, feathery methane clouds drifting across Saturn's moon Titan on May 7, 2017. The view was obtained during\u2026","rel":"","context":"In &quot;Europa, Titan, &amp; other deep space sites&quot;","block_context":{"text":"Europa, Titan, &amp; other deep space sites","link":"https:\/\/hobbyspace.com\/Blog\/?cat=98"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/05\/7673_PIA21450-A-and-B-1000w1.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":16660,"url":"https:\/\/hobbyspace.com\/Blog\/?p=16660","url_meta":{"origin":13506,"position":3},"title":"Video: Hubble captures aurora in action on Saturn&#8217;s north pole","author":"TopSpacer","date":"August 30, 2018","format":false,"excerpt":"A new report from the NASA\/ESA Hubble Telescope collaboration: Hubble observes energetic lightshow at Saturn\u2019s north pole Astronomers using the NASA\/ESA Hubble Space telescope have taken a series of spectacular images featuring the fluttering auroras at the north pole of Saturn. The observations were taken in ultraviolet light and the\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\/hobbyspace.com\/Blog\/wp-content\/uploads\/2018\/08\/heic1815a1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":6463,"url":"https:\/\/hobbyspace.com\/Blog\/?p=6463","url_meta":{"origin":13506,"position":4},"title":"Video: The dancing auroras of Saturn","author":"TopSpacer","date":"February 12, 2014","format":false,"excerpt":"A beautiful set of image sequences showing the auroras of Saturn in action:\u00a0Dance of Saturn's Auroras - YouTube http:\/\/youtu.be\/p32xzRSBXuk From the caption: Ultraviolet and infrared images from NASA's Cassini spacecraft and Hubble Space Telescope show active and quiet auroras at Saturn's north and south poles. 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In this 360-degree video,\u2026","rel":"","context":"In &quot;Europa, Titan, &amp; other deep space sites&quot;","block_context":{"text":"Europa, Titan, &amp; other deep space sites","link":"https:\/\/hobbyspace.com\/Blog\/?cat=98"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/04\/pia21445_figb_zoomed1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/13506","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=13506"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/13506\/revisions"}],"predecessor-version":[{"id":13508,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/13506\/revisions\/13508"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}