{"id":10441,"date":"2015-04-23T00:13:02","date_gmt":"2015-04-23T04:13:02","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=10441"},"modified":"2015-04-23T00:13:02","modified_gmt":"2015-04-23T04:13:02","slug":"latest-rosetta-images-of-comet-67pc-g","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=10441","title":{"rendered":"Latest Rosetta images of Comet 67P\/C-G"},"content":{"rendered":"

Wonderful new\u00a0images of Comet 67P\/Churyumov-Gerasimenko\u00a0from Rosetta “ESA’s comet chaser”<\/a>\u00a0have been released in the past week or so:<\/p>\n

*\u00a0OSIRIS catches activity in the act<\/a>\u00a0–<\/p>\n

The comet\u2019s activity has been significantly increasing over the last weeks and months. As the comet moves closer to the Sun along its orbit, its nucleus gets warmer and warmer. Frozen gases sublimate from its surface, carrying dust particles with it and enshrouding the nucleus in a dense coma. With only four months to go until perihelion \u2013 the closest point to the Sun \u2013 this process is well underway, with pronounced dust jets seen at all times on the comet\u2019s day side.<\/em><\/p>\n

\"ESA_Rosetta_OSIRIS_WAC_20150312[1]\"<\/a>Rosetta\u2019s OSIRIS wide-angle camera captures the moment a jet bursts
\ninto\u00a0<\/em>action. The first image was captured at 07:13 CET on 12 March
\n2015, the \u00a0<\/em>second two minutes later.
\nCredits: ESA\/Rosetta\/MPS for OSIRIS Team\u00a0<\/em><\/p>\n

The two images released today show the remarkable onset of such a jet for the first time. They were taken on 12 March from a distance of 75 kilometres. In the first image, obtained at 07:13 CET, several rays of dust jets frame the upper, illuminated side of the comet. The dark underside shows no such features. Two minutes later, the picture has changed: a spectacular new jet has emerged on the dark side, hurtling dust into space and displaying a clearly discernable fine structure.<\/em><\/p>\n

\u201cThis was a chance discovery,\u201d says OSIRIS principal investigator Holger Sierks from the Max Planck Institute for Solar System Research (MPS) in Germany. \u201cNo one has ever witnessed the wake-up of a dust jet before. It is impossible to plan such an image.\u201d<\/em><\/p>\n

Continue…<\/a><\/p>\n

*\u00a0CometWatch 15 April <\/a>\u00a0–<\/p>\n

Today’s CometWatch entry is a single frame NAVCAM image obtained on 15 April, from a distance of 170 km from the centre of Comet 67P\/Churyumov-Gerasimenko. At this distance, the resolution is 14.5 m\/pixel; the image has been cropped to 11.4 km (the original frame, provided at the end of the post, measures 14.8 km across).<\/em><\/p>\n

\"ESA_Rosetta_NavCam_20150415_LR[1]\"<\/a><\/p>\n

Continue..<\/a><\/em><\/p>\n

*\u00a0CometWatch 15 April \u2013 4 hours later<\/a>\u00a0–<\/p>\n

Today’s CometWatch entry is another single frame NAVCAM image taken on 15 April, almost four hours after the one that was published last Friday<\/a>. The new picture was obtained at about 165 km from the centre of Comet 67P\/Churyumov-Gerasimenko, where the resolution of NAVCAM is 14 m\/pixel. The image has been cropped and measures 10.4 km (the original frame, provided at the end of the post, measures 14.4 km across).<\/em><\/p>\n

\"ESA_Rosetta_NavCam_20150415_LR1[1]\"<\/a><\/p>\n

Continue…<\/a><\/em><\/p>\n

*\u00a0\u201cCrescent comet\u201d \u2013 CometWatch 15 and 16 April<\/a>\u00a0–<\/p>\n

The image [below] was captured on 15 April 2015 by Rosetta\u2019s Navigation camera from a distance of 162 km from the comet centre. The resolution is 14 m\/pixel and the image measures 14 km across. It has been processed to bring out the incredible detail of the comet\u2019s activity streaming away from the nucleus.<\/em><\/p>\n

\"ESA_Rosetta_NavCam_20150415T1155_LR-1024x1024[1]\"<\/a><\/p>\n

 <\/p>\n

The previous two CometWatch entries were also acquired on 15 April and today\u2019s image fits into the sequence nicely, captured just before midday spacecraft time, a little over two hours after Monday\u2019s entry.<\/em><\/p>\n

Under the viewing conditions at this time, the comet appears largely in shadow, with the \u2018underside\u2019 of the comet\u2019s large lobe beautifully silhouetted against the background glow of activity that surrounds the nucleus.<\/em><\/p>\n

Continue…<\/a><\/em><\/p>\n

*\u00a0Rosetta update: Two close flybys of an increasingly active comet –\u00a0The Planetary Society<\/a>\u00a0–\u00a0 Emily Lakdawalla<\/a>\u00a0gives a tour of the new\u00a0images.<\/p>\n

\"20150421_Comet_activity_31_January_25_March_2015_f840[1]\"<\/a><\/p>\n

 <\/p>\n

In the two months since I last checked up on the Rosetta mission, the comet has heated up, displaying more and more jet activity. Perihelion is now only four months away, and the pictures are just getting more and more dramatic with time.<\/em><\/p>\n

Continue…<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Wonderful new\u00a0images of Comet 67P\/Churyumov-Gerasimenko\u00a0from Rosetta “ESA’s comet chaser”\u00a0have been released in the past week or so: *\u00a0OSIRIS catches activity in the act\u00a0– The comet\u2019s activity has been significantly increasing over the last weeks and months. As the comet moves closer to the Sun along its orbit, its nucleus gets warmer and warmer. Frozen gases … Continue reading Latest Rosetta images of Comet 67P\/C-G<\/span> →<\/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":[75,13,26],"tags":[],"class_list":["post-10441","post","type-post","status-publish","format-standard","hentry","category-asteroids","category-space-science","category-space-systems"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-2Ip","jetpack-related-posts":[{"id":10363,"url":"https:\/\/hobbyspace.com\/Blog\/?p=10363","url_meta":{"origin":10441,"position":0},"title":"Rosetta montage of images of Comet 67P\/C-G","author":"TopSpacer","date":"April 13, 2015","format":false,"excerpt":"The\u00a0ESA Rosetta\u00a0mission releases a new set of images of Comet 67P\/Churyumov-Gerasimenko: Comet activity 31 January \u2013 25 March 2015 Click for larger image Four months from today, on 13 August, Comet 67P\/Churyumov-Gerasimenko will reach perihelion \u2013 a moment that defines its closest point to the Sun along its orbit. For\u2026","rel":"","context":"In "Asteroids & Comets"","block_context":{"text":"Asteroids & Comets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=75"},"img":{"alt_text":"Comet_activity_31_January_25_March_2015_node_full_image_2[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/04\/Comet_activity_31_January_25_March_2015_node_full_image_21.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/04\/Comet_activity_31_January_25_March_2015_node_full_image_21.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/04\/Comet_activity_31_January_25_March_2015_node_full_image_21.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/04\/Comet_activity_31_January_25_March_2015_node_full_image_21.jpg?resize=700%2C400 2x"},"classes":[]},{"id":11290,"url":"https:\/\/hobbyspace.com\/Blog\/?p=11290","url_meta":{"origin":10441,"position":1},"title":"Video: ESA Euronews report – update on the Rosetta mission","author":"TopSpacer","date":"August 30, 2015","format":false,"excerpt":"This ESA Euronews video reports on various Euro space news and then focuses on Rosetta\u00a0mission to\u00a0Comet 67P\/Churyumov-Gerasimenko, , including the\u00a0study of\u00a0organic molecules: The Rosetta Mission has been writing a new chapter in what we know about the formation of life. The ESA teams involved are now preparing for the last\u2026","rel":"","context":"In "Asteroids & Comets"","block_context":{"text":"Asteroids & Comets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=75"},"img":{"alt_text":"Comet_on_22_August_2015_NavCam_node_full_image_2[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/08\/Comet_on_22_August_2015_NavCam_node_full_image_21.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":11181,"url":"https:\/\/hobbyspace.com\/Blog\/?p=11181","url_meta":{"origin":10441,"position":2},"title":"Rosetta spots jet outburst from Comet 67P\/C-G","author":"TopSpacer","date":"August 11, 2015","format":false,"excerpt":"The latest images from\u00a0Rosetta\u00a0at\u00a0Comet 67P\/Churyumov\u2013Gerasimenko: Comet\u2019s firework display ahead of perihelion In the approach to perihelion over the past few weeks, Rosetta has been witnessing growing activity from Comet 67P\/Churyumov\u2013Gerasimenko, with one dramatic outburst event proving so powerful that it even pushed away the incoming solar wind. The comet reaches\u2026","rel":"","context":"In "Asteroids & Comets"","block_context":{"text":"Asteroids & Comets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=75"},"img":{"alt_text":"Outburst_in_action_node_full_image_2[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/08\/Outburst_in_action_node_full_image_21.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":9708,"url":"https:\/\/hobbyspace.com\/Blog\/?p=9708","url_meta":{"origin":10441,"position":3},"title":"Hi-Def images of Comet 67P\/C-G from Resetta","author":"TopSpacer","date":"January 23, 2015","format":false,"excerpt":"The ESA Rosetta project has released some impressive high-resolution images of Comet 67P\/Churyumov\u2013Gerasimenko:\u00a0Comet close-ups - ESA. Getting to know Rosetta\u2019s comet\u00a0 Comet from 8 km A section of the smaller of Comet 67P\/Churyumov\u2013Gerasimenko\u2019s two lobes as seen through Rosetta\u2019s narrow-angle camera from a distance of about 8 km to the\u2026","rel":"","context":"In "Asteroids & Comets"","block_context":{"text":"Asteroids & Comets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=75"},"img":{"alt_text":"Comet_from_8_km_fullwidth","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/01\/Comet_from_8_km_fullwidth.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":8489,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8489","url_meta":{"origin":10441,"position":4},"title":"Rosetta spacecraft arrives at Comet 67P\/C-G","author":"TopSpacer","date":"August 6, 2014","format":false,"excerpt":"The European Space Agency's Rosetta spacecraft after ten years has finally made its\u00a0rendezvous this morning with\u00a0Comet 67P\/Churyumov\u2013Gerasimenko. Below is the official announcement. (Note that unlike NASA, ESA has a policy of not releasing images in real time for its science missions. This is apparently to insure analysis of them by\u2026","rel":"","context":"In "Asteroids & Comets"","block_context":{"text":"Asteroids & Comets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=75"},"img":{"alt_text":"Comet_on_3_August_2014_node_full_image_2","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/08\/Comet_on_3_August_2014_node_full_image_2.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":15915,"url":"https:\/\/hobbyspace.com\/Blog\/?p=15915","url_meta":{"origin":10441,"position":5},"title":"New animation of Rosetta images shows a wild time on Comet 67P","author":"TopSpacer","date":"April 26, 2018","format":false,"excerpt":"In 2014 the European Space Agency's\u00a0Rosetta\u00a0probe went into orbit around \u00a0Comet 67P\/Churyumov\u2013Gerasimenko\u00a0and spent a couple of years studying it.\u00a0 Jacint Roger Perez combined a series of 33 images made during a 25 minute period as the probe flew about 13 kilometers from the comet and the resulting time lapse creates\u2026","rel":"","context":"In "Asteroids & Comets"","block_context":{"text":"Asteroids & Comets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=75"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2018\/04\/RosettaOsirisC67P_JacintRoger1.gif?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/10441","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=10441"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/10441\/revisions"}],"predecessor-version":[{"id":10447,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/10441\/revisions\/10447"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10441"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10441"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}