 {"id":3562,"date":"2017-07-13T00:30:50","date_gmt":"2017-07-12T22:30:50","guid":{"rendered":"http:\/\/gap47.astrosurf.com\/?page_id=3562"},"modified":"2021-11-07T20:16:41","modified_gmt":"2021-11-07T18:16:41","slug":"photos-des-planetes","status":"publish","type":"page","link":"https:\/\/gap47.astrosurf.com\/index.php\/ressources\/nos-photos\/photos-des-planetes\/","title":{"rendered":"Photos de plan\u00e8tes"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><strong>Neptune<\/strong>, par Pierre Valat et Jean-Luc Chevallier (GAP47) le 11 octobre 2021<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">Photos prises au t\u00e9lescope T300 Newton de notre observatoire. Barlow x2.5, cam\u00e9ra SWO ASI290, acquisition avec Asicap, association de deux prises de vue, pour Neptune 500 images (sur 2648), pour Triton 45 images (sur 180), Autostakkert, fusion des brutes sous Photoshop, Registax pour les ondelettes, finalisation avec Photoshop, Jean-Luc Chevallier et Pierre Valat.<\/span><\/p>\n<p><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2021\/11\/2021-10-11-2159_2-Neptune_ASI290_500exp-45exp_Reg-moyeb-faible_PF-lumin.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11171 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2021\/11\/2021-10-11-2159_2-Neptune_ASI290_500exp-45exp_Reg-moyeb-faible_PF-lumin.jpg\" alt=\"\" width=\"640\" height=\"480\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2021\/11\/2021-10-11-2159_2-Neptune_ASI290_500exp-45exp_Reg-moyeb-faible_PF-lumin.jpg 640w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2021\/11\/2021-10-11-2159_2-Neptune_ASI290_500exp-45exp_Reg-moyeb-faible_PF-lumin-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">On voit ici Neptune (49.520 km de diam\u00e8tre) au centre de l&rsquo;image et son plus gros satellite, Triton (2.700 km de diam\u00e8tre), en dessous, l\u00e9g\u00e8rement \u00e0 gauche.<\/span><br \/>\n<span style=\"font-size: 20px; font-family: 'times new roman', times, serif;\">Rappelons que Neptune est \u00e0 30 fois plus loin du Soleil que nous, soit \u00e0 une distance de 4,5 milliards de km !<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2021\/11\/2021-10-11-2159_2-Neptune_ASI290_500exp-45exp_Reg-moyeb-faible_PF-lumin.tif\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-11170\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2021\/11\/2021-10-11-2159_2-Neptune_ASI290_500exp-45exp_Reg-moyeb-faible_PF-lumin.tif\" alt=\"\"><\/a><\/span><\/p>\n<hr>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><strong>Mars<\/strong>, par Pierre Valat (GAP47) au t\u00e9lescope de 310 mm \u00e0 l&rsquo;observatoire de Montayral. Mars s&rsquo;\u00e9loigne d\u00e9sormais de la Terre. Prochaines photos probables de la \u00ab\u00a0plan\u00e8te rouge\u00a0\u00bb dans environ 2 ans.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-07-04-0213_9-Mars_25exp_Reg-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-10090\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-07-04-0213_9-Mars_25exp_Reg-1.jpg\" alt=\"\" width=\"507\" height=\"382\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-07-04-0213_9-Mars_25exp_Reg-1.jpg 507w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-07-04-0213_9-Mars_25exp_Reg-1-300x226.jpg 300w\" sizes=\"auto, (max-width: 507px) 100vw, 507px\" \/><\/a><\/span><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">T\u00e9lescope 310 &#8211; f=1500mm &#8211; Barlow x3 &#8211; cam\u00e9ra ZWO290 &#8211; filtre ProPlanets &#8211; AS!3 25 images &#8211; Reg6 &#8211; 4 juillet 2020<\/span><\/em><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-17-2049_Mars_2000exp_Bx4_T310_ZWO_PS.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-10092\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-17-2049_Mars_2000exp_Bx4_T310_ZWO_PS.jpg\" alt=\"\" width=\"593\" height=\"432\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-17-2049_Mars_2000exp_Bx4_T310_ZWO_PS.jpg 593w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-17-2049_Mars_2000exp_Bx4_T310_ZWO_PS-300x219.jpg 300w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><\/a><\/span><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">T\u00e9lescope 310 &#8211; f=1500mm &#8211; Barlow x4 &#8211; Mars 2000exp &#8211; cam\u00e9ra ZWO290 &#8211; Reg6 &#8211; avec G\u00e9rard Thirot &#8211; 17 octobre 2020<\/span><\/em><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-18-2126_Mars_2000exp.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-10093\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-18-2126_Mars_2000exp.jpg\" alt=\"\" width=\"640\" height=\"480\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-18-2126_Mars_2000exp.jpg 640w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-18-2126_Mars_2000exp-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/span><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">T\u00e9lescope 310 &#8211; f=1500mm &#8211; Barlow x2,5 &#8211; Mars 2000exp &#8211; cam\u00e9ra ZWO290 &#8211; Reg6 &#8211; 18 octobre 2020<\/span><\/em><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-29-2135_4-Mars_1000exp_PS.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-10094\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-29-2135_4-Mars_1000exp_PS.jpg\" alt=\"\" width=\"640\" height=\"480\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-29-2135_4-Mars_1000exp_PS.jpg 640w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-10-29-2135_4-Mars_1000exp_PS-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/span><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">T\u00e9lescope 310 &#8211; f=1500mm &#8211; Barlow x3 &#8211; Mars 1000exp &#8211; cam\u00e9ra ZWO290 &#8211; Reg6 &#8211; 29 octobre 2020<\/span><\/em><\/p>\n<hr>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><strong>Mars<\/strong>, par G\u00e9rard Thirot (GAP47)<\/span><\/p>\n<p><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-11-05-Mars-Ge\u0301.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-10109\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-11-05-Mars-Ge\u0301.jpg\" alt=\"\" width=\"525\" height=\"387\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-11-05-Mars-Ge\u0301.jpg 525w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-11-05-Mars-Ge\u0301-300x221.jpg 300w\" sizes=\"auto, (max-width: 525px) 100vw, 525px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-11-08-Mars-Ge\u0301.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-10110\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-11-08-Mars-Ge\u0301.jpg\" alt=\"\" width=\"869\" height=\"564\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-11-08-Mars-Ge\u0301.jpg 869w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-11-08-Mars-Ge\u0301-300x195.jpg 300w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/11\/2020-11-08-Mars-Ge\u0301-768x498.jpg 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">Pour ces 2 photos (avi) faites les 5 et 8 novembre 2020 &#8211; Lunette APM 107\/700 &#8211; cam\u00e9ra ASI ZWO 290 &#8211; Traitement AS2! &#8211; Registax &#8211; Photofiltre<\/span><\/em><\/p>\n<hr>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><strong>V\u00e9nus<\/strong>, par Pierre Valat (GAP47) le 24 avril 2020<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">V\u00e9nus, tout comme Mercure et comme la Lune, peut \u00eatre vue depuis la Terre avec des \u00ab\u00a0phases\u00a0\u00bb (ce qui n&rsquo;est pas le cas des plan\u00e8tes ext\u00e9rieures, de Mars \u00e0 Neptune). Ici nous avons un \u00ab\u00a0dernier quartier\u00a0\u00bb de V\u00e9nus.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">Lunette Vixen 102\/1000, monture HEQ5, cam\u00e9ra ZWO290, barlow x2, 300 photo sur 3000, Autostackkert, Photoshop.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9508 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-24-Venus-Pierre.jpg\" alt=\"\" width=\"800\" height=\"600\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-24-Venus-Pierre.jpg 800w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-24-Venus-Pierre-300x225.jpg 300w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-24-Venus-Pierre-768x576.jpg 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n<hr>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">3 photos de Pierre Valat (GAP47).<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">V\u00e9nus, dans son cheminement vers l&rsquo;amas ouvert des Pl\u00e9iades (dans la constellation du Taureau), ce qui n&rsquo;arrive que tous les 8 ans. <\/span><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">3 photos, prises, dans l&rsquo;ordre, les 1<sup>er<\/sup>, 2 et 3 avril 2020.<\/span><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">Ensemble \u00ab\u00a0V\u00e9nus-Pleiades\u00a0\u00bb : 1, 2 et 3 avril 2020 &#8211; Canon1200D &#8211; zoom Canon standard r\u00e9gl\u00e9 sur 135mm 6.3 &#8211; monture motoris\u00e9e HEQ5<\/span><\/em><\/p>\n<p style=\"text-align: left;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">Plus, pour V\u00e9nus, trois recettes diff\u00e9rentes :<\/span><\/em><br \/>\n<em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">2020-04-1 : 22 poses de 1 min + 12 poses de 2 min + darks &#8211; traitement Deepskystacker + Photoshop<\/span><\/em><br \/>\n<em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">2020-04-02 : 1 pose de 1 min + darks &#8211; traitement Photoshop<\/span><\/em><br \/>\n<em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">2020-04-03 : 23 poses de 1 min + darks &#8211; traitement Photoshop<\/span><\/em><\/p>\n<p style=\"text-align: center;\"><strong><span style=\"font-family: arial, helvetica, sans-serif;\">Remarque : sur ces photos, on distingue mal les \u00e9toiles des Pl\u00e9iades, mais si vous cliquez sur chacune d&rsquo;elles (une par une) vous pourrez voir ces photos dans un format plus grand qui vous permettra de mieux voir les Pl\u00e9iades.<\/span><\/strong><\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-01-Venus-Pleiades_1-2min_22-12exp_43min_PS-select-courbes-couleur_1900.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9483 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-01-Venus-Pleiades_1-2min_22-12exp_43min_PS-select-courbes-couleur_1900.jpg\" alt=\"\" width=\"1900\" height=\"1266\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-01-Venus-Pleiades_1-2min_22-12exp_43min_PS-select-courbes-couleur_1900.jpg 1900w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-01-Venus-Pleiades_1-2min_22-12exp_43min_PS-select-courbes-couleur_1900-300x200.jpg 300w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-01-Venus-Pleiades_1-2min_22-12exp_43min_PS-select-courbes-couleur_1900-768x512.jpg 768w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-01-Venus-Pleiades_1-2min_22-12exp_43min_PS-select-courbes-couleur_1900-1801x1200.jpg 1801w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-02-Venus-Pleiades_1min_1exp_darks_PS-select-courbes-rouge_1900.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9484 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-02-Venus-Pleiades_1min_1exp_darks_PS-select-courbes-rouge_1900.jpg\" alt=\"\" width=\"1920\" height=\"1279\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-02-Venus-Pleiades_1min_1exp_darks_PS-select-courbes-rouge_1900.jpg 1920w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-02-Venus-Pleiades_1min_1exp_darks_PS-select-courbes-rouge_1900-300x200.jpg 300w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-02-Venus-Pleiades_1min_1exp_darks_PS-select-courbes-rouge_1900-768x512.jpg 768w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-02-Venus-Pleiades_1min_1exp_darks_PS-select-courbes-rouge_1900-1801x1200.jpg 1801w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-03-Pleiades_1min-23exp_PS-courbes_1900.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9485 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-03-Pleiades_1min-23exp_PS-courbes_1900.jpg\" alt=\"\" width=\"1900\" height=\"1266\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-03-Pleiades_1min-23exp_PS-courbes_1900.jpg 1900w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-03-Pleiades_1min-23exp_PS-courbes_1900-300x200.jpg 300w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-03-Pleiades_1min-23exp_PS-courbes_1900-768x512.jpg 768w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/2020-04-03-Pleiades_1min-23exp_PS-courbes_1900-1801x1200.jpg 1801w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/p>\n<hr>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><strong>Saturne<\/strong> par Pierre Valat (GAP47), le 16 septembre 2019, re-trait\u00e9e par Romain Brazzorotto (GAP47).<\/span><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">T\u00e9lescope T310\/1500 Newton fabrication GAP47 &#8211; camera ZWO290 &#8211; fichiers avi de&nbsp; 3000 images, filtre \u00ab\u00a0Planets\u00a0\u00bb &#8211; composition de 1000 images avec Autostakkert et Registax &#8211; traitement sous Photoshop &#8211; colorisation<\/span><\/em><\/p>\n<p><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/SaturneRomain2colorise.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9481 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/SaturneRomain2colorise.jpg\" alt=\"\" width=\"1600\" height=\"896\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/SaturneRomain2colorise.jpg 1600w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/SaturneRomain2colorise-300x168.jpg 300w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/04\/SaturneRomain2colorise-768x430.jpg 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/p>\n<hr>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">Dans le cadre de la collaboration avec l\u2019observatoire de Paris, nous avons assist\u00e9 \u00e0 l&rsquo;occultation d&rsquo;une \u00e9toile de magnitude 12,5 par Triton, qui est le seul gros satellite de Neptune (parmi les 14 lunes que compte la plan\u00e8te la plus \u00e9loign\u00e9e du Soleil). L&rsquo;occultation n&rsquo;a dur\u00e9 que 92 secondes !). L&rsquo;un des buts vis\u00e9s (mais pas le seul) par l&rsquo;\u00e9tude ce cette occultation \u00e9tait de mettre en \u00e9vidence l&rsquo;atmosph\u00e8re de Triton. Triton et Titan sont les deux seuls satellites du syst\u00e8me solaire \u00e0 avoir une atmosph\u00e8re. Celle de Triton est incroyablement fine avec une pression de surface de 1,4 pascal (contre 101 kpascal pour notre plan\u00e8te soit un rapport de 1 \u00e0 72.300). Titan par contre a une densit\u00e9 de son atmosph\u00e8re de 50% sup\u00e9rieure \u00e0 celle de la Terre).<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">Les photos ci-dessous sont des agrandissements, le champ d&rsquo;origine \u00e9tait beaucoup plus grand. Il s\u2019agissait de prendre l\u2019\u00e9clipse de l&rsquo;\u00e9toile UCAC4 410-143659 par Triton avec une \u00e9toile non satur\u00e9e incluse dans le champ (fl\u00e8che rouge sur la capture AVI).<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">Stacking (AutoStakkert) d\u2019une vid\u00e9o prise au foyer d\u2019un Newton 254 x 1200 avec une cam\u00e9ra Asi 120 MC et une barlow x2 sans autoguidage. <\/span><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">Photo de Phlippe Cottin et Geoffroi Allix du GAP47 le 5 octobre 2017 \u00e0 23h30.<\/span><\/em><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9076 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/01\/Approche-Occultation-de-UCAC4-410-143659-par-Triton.jpg\" alt=\"\" width=\"500\" height=\"371\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/01\/Approche-Occultation-de-UCAC4-410-143659-par-Triton.jpg 500w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/01\/Approche-Occultation-de-UCAC4-410-143659-par-Triton-300x223.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9077 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/01\/Approche-Occultation-de-UCAC4-410-143659-par-Triton2.jpg\" alt=\"\" width=\"500\" height=\"371\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/01\/Approche-Occultation-de-UCAC4-410-143659-par-Triton2.jpg 500w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/01\/Approche-Occultation-de-UCAC4-410-143659-par-Triton2-300x223.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p style=\"text-align: center;\"><em><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\">La jolie bille bleue au centre est Neptune. L&rsquo;objet \u00e0 la gauche de Neptune, et entour\u00e9 de rouge (sur la photo du bas) est Triton, satellite de 2.700 km de diam\u00e8tre. L&rsquo;objet le plus \u00e0 gauche est l&rsquo;\u00e9toile UCAC4 410-143659 juste avant son occultation par Triton.<\/span><\/em><\/p>\n<hr>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #0000ff;\">Ici, un exemple comparable en vid\u00e9o de l&rsquo;occultation d&rsquo;une \u00e9toile double par Titan, l&rsquo;\u00e9norme satellite de Saturne. Cette petite vid\u00e9o a \u00e9t\u00e9 plus facile \u00e0 r\u00e9aliser que ne l&rsquo;aurait \u00e9t\u00e9 celle de Triton car Saturne est trois fois plus proche de nous que Neptune et que Titan fait pr\u00e8s du double du diam\u00e8tre de Triton. Ce n&rsquo;est pas une vid\u00e9o r\u00e9alis\u00e9e par le GAP47. On voit tr\u00e8s bien le passage des deux \u00e9toiles dans l&rsquo;atmosph\u00e8re de Titan, qui provoque un effet progressif de la disparition de leur lumi\u00e8re.<\/span><\/p>\n<div style=\"width: 525px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-3562-1\" width=\"525\" height=\"164\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/01\/Titan-occults-a-binary-star.mp4?_=1\" \/><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/01\/Titan-occults-a-binary-star.mp4\">http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2020\/01\/Titan-occults-a-binary-star.mp4<\/a><\/video><\/div>\n<hr>\n<table style=\"width: 706px;\">\n<tbody>\n<tr style=\"height: 253px;\">\n<td style=\"width: 337.483px; height: 253px;\" colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3754 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/Saturne_2007-03_fichier09_grand.jpg\" alt=\"\" width=\"640\" height=\"480\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/Saturne_2007-03_fichier09_grand.jpg 640w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/Saturne_2007-03_fichier09_grand-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/td>\n<\/tr>\n<tr style=\"height: 27px;\">\n<td style=\"width: 337.483px; text-align: center; height: 27px;\" colspan=\"2\"><span style=\"font-size: 20px;\"><em><span style=\"font-family: times new roman,times,serif;\">Mars 2007 &#8211; SATURNE \u00e0 la webcam sur T510 barlow x3 &#8211; 63 clich\u00e9s tri\u00e9s manuellement Registax<\/span><\/em><\/span><\/td>\n<\/tr>\n<tr style=\"height: 253px;\">\n<td style=\"width: 337.483px; height: 253px;\" colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3753 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/Saturne_2007-03_fichier0407_grand.jpg\" alt=\"\" width=\"640\" height=\"480\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/Saturne_2007-03_fichier0407_grand.jpg 640w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/Saturne_2007-03_fichier0407_grand-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/td>\n<\/tr>\n<tr style=\"height: 54px;\">\n<td style=\"width: 337.483px; text-align: center; height: 54px;\" colspan=\"2\"><span style=\"font-size: 20px;\">&nbsp;<em><span style=\"font-family: times new roman,times,serif;\">Mars 2007 &#8211; <\/span><\/em><em><span style=\"font-family: times new roman,times,serif;\">SATURNE \u00e0 la webcam sur T510 au foyer &#8211; 440 clich\u00e9s tri\u00e9s Registax<\/span><\/em><\/span><br \/>\n<span style=\"font-size: 20px;\"><em><span style=\"font-family: times new roman,times,serif;\">superposition de deux clich\u00e9s dont l&rsquo;un a \u00e9t\u00e9 surexpos\u00e9 pour faire appara\u00eetre les satellites<\/span><\/em><\/span><\/td>\n<\/tr>\n<tr style=\"height: 272.15px;\">\n<td style=\"width: 337.483px; height: 272.15px;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3750 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/2009-03-14-Saturne12_755exp_lent_323-159-36-20-26-70_niveaux_recadre_2.jpg\" alt=\"\" width=\"290\" height=\"206\"><\/td>\n<td style=\"width: 352.517px; height: 272.15px;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3752 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/mars2003.gif\" alt=\"\" width=\"412\" height=\"308\"><\/td>\n<\/tr>\n<tr style=\"height: 81px;\">\n<td style=\"width: 337.483px; text-align: center; height: 81px;\"><span style=\"font-size: 20px;\"><em><span style=\"font-family: times new roman,times,serif;\">&nbsp;Saturne perd ses anneaux &#8211; 14 mars 2009. <\/span><\/em><\/span><span style=\"font-size: 20px;\"><em><span style=\"font-family: times new roman,times,serif;\">Webcam ToUcam ProII &#8211; Lunette Vixen 102-1000 &#8211; barlow x3&nbsp; &#8211; 750 clich\u00e9s<\/span><\/em><\/span><\/td>\n<td style=\"width: 352.517px; height: 81px; text-align: center;\"><span style=\"font-size: 20px;\"><em><span style=\"font-family: times new roman,times,serif;\">Mars: LX 200 diam\u00e8tre 203mm,Web Cam Vesta Pro 900 poses de 1\/33s \u00e0 F\/D37. &#8211; <\/span><\/em><em><span style=\"font-family: times new roman,times,serif;\">Photo r\u00e9alis\u00e9e le 13\/07\/03 \u00e0 03h13 TU. P Bignone et J P Cazard &nbsp;<\/span><\/em><\/span><\/td>\n<\/tr>\n<tr style=\"height: 253px;\">\n<td style=\"width: 337.483px; height: 253px;\" colspan=\"2\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3751 aligncenter\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/Jupiter_2006_02_traite-b2_zoom.jpg\" alt=\"\" width=\"640\" height=\"480\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/Jupiter_2006_02_traite-b2_zoom.jpg 640w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/Jupiter_2006_02_traite-b2_zoom-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/td>\n<\/tr>\n<tr style=\"height: 26px;\">\n<td style=\"width: 337.483px; height: 26px; text-align: center;\" colspan=\"2\"><span style=\"font-size: 20px;\"><em><span style=\"font-family: times new roman, times, serif;\">\u2191&nbsp; Jupiter Lunette Vixen 102 + webcam &#8211; Pierre Valat<\/span><\/em><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\"><a href=\"http:\/\/gap47.astrosurf.com\/index.php\/ressources\/nos-photos-et-videos\/nos-photos\/photos-des-planetes\/saturne-cottin\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-6054 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/11\/Saturne.Cottin.jpg\" alt=\"\" width=\"960\" height=\"720\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/11\/Saturne.Cottin.jpg 960w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/11\/Saturne.Cottin-300x225.jpg 300w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/11\/Saturne.Cottin-768x576.jpg 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><span style=\"font-size: 20px;\"><em><span style=\"font-family: times new roman, times, serif;\">\u2191&nbsp;&nbsp; Saturne par Philippe Cottin<\/span><\/em><\/span><\/p>\n<p style=\"text-align: center;\">&nbsp; <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-6055 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/11\/Jupiter.Cottin.jpg\" alt=\"\" width=\"480\" height=\"432\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/11\/Jupiter.Cottin.jpg 480w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/11\/Jupiter.Cottin-300x270.jpg 300w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><span style=\"font-family: 'times new roman', times, serif; font-size: 20px;\"><em>\u2191&nbsp;&nbsp; Jupiter par Philippe Cottin<\/em><\/span><\/p>\n<hr>\n<p style=\"text-align: center;\"><em><span style=\"font-family: times new roman,times,serif; font-size: 20px;\">Nikon D5200 &#8211; Objectif Nikkor 300 mm &#8211; Agrandissement d&rsquo;une photo d&rsquo;Olivier Sabbagh &#8211; <\/span><\/em><span style=\"font-family: times new roman,times,serif; font-size: 20px;\">10 octobre 2015 \u00e0 l&rsquo;aube.<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 20px;\"><em><span style=\"font-family: 'times new roman', times, serif;\">Mercure, petite et difficile \u00e0 voir, sauf \u00e0 l&rsquo;\u00e9longation maximale \u2193<\/span><\/em><\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-1G.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3726 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-1G.jpg\" alt=\"\" width=\"1500\" height=\"606\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-1G.jpg 1500w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-1G-300x121.jpg 300w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-1G-768x310.jpg 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-2G.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3727 size-full\" src=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-2G.jpg\" alt=\"\" width=\"1500\" height=\"671\" srcset=\"https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-2G.jpg 1500w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-2G-300x134.jpg 300w, https:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2017\/07\/DSC_0107-2G-768x344.jpg 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/a><\/p>\n<hr>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Neptune, par Pierre Valat et Jean-Luc Chevallier (GAP47) le 11 octobre 2021 Photos prises au t\u00e9lescope T300 Newton de notre observatoire. Barlow x2.5, cam\u00e9ra SWO ASI290, acquisition avec Asicap, association de deux prises de vue, pour Neptune 500 images (sur 2648), pour Triton 45 images (sur 180), Autostakkert, fusion des brutes sous Photoshop, Registax pour &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/gap47.astrosurf.com\/index.php\/ressources\/nos-photos\/photos-des-planetes\/\" class=\"more-link\">Continuer la lecture<span class=\"screen-reader-text\"> de &laquo;&nbsp;Photos de plan\u00e8tes&nbsp;&raquo;<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"parent":1279,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-3562","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Photos de plan\u00e8tes - L&#039;observatoire est ouvert aux visiteurs tous les vendredis soirs \u00e0 21 heures, jusqu&#039;au 3 juillet 2026 inclus, sans r\u00e9servation.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gap47.astrosurf.com\/index.php\/ressources\/nos-photos\/photos-des-planetes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Photos de plan\u00e8tes - L&#039;observatoire est ouvert aux visiteurs tous les vendredis soirs \u00e0 21 heures, jusqu&#039;au 3 juillet 2026 inclus, sans r\u00e9servation.\" \/>\n<meta property=\"og:description\" content=\"Neptune, par Pierre Valat et Jean-Luc Chevallier (GAP47) le 11 octobre 2021 Photos prises au t\u00e9lescope T300 Newton de notre observatoire. Barlow x2.5, cam\u00e9ra SWO ASI290, acquisition avec Asicap, association de deux prises de vue, pour Neptune 500 images (sur 2648), pour Triton 45 images (sur 180), Autostakkert, fusion des brutes sous Photoshop, Registax pour &hellip; Continuer la lecture de &laquo;&nbsp;Photos de plan\u00e8tes&nbsp;&raquo;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/gap47.astrosurf.com\/index.php\/ressources\/nos-photos\/photos-des-planetes\/\" \/>\n<meta property=\"og:site_name\" content=\"L&#039;observatoire est ouvert aux visiteurs tous les vendredis soirs \u00e0 21 heures, jusqu&#039;au 3 juillet 2026 inclus, sans r\u00e9servation.\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/astrogap47\/\" \/>\n<meta property=\"article:modified_time\" content=\"2021-11-07T18:16:41+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/gap47.astrosurf.com\/wp-content\/uploads\/2021\/11\/2021-10-11-2159_2-Neptune_ASI290_500exp-45exp_Reg-moyeb-faible_PF-lumin.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/gap47.astrosurf.com\/index.php\/ressources\/nos-photos\/photos-des-planetes\/\",\"url\":\"https:\/\/gap47.astrosurf.com\/index.php\/ressources\/nos-photos\/photos-des-planetes\/\",\"name\":\"Photos de plan\u00e8tes - 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