{"id":10448,"date":"2023-08-31T12:13:19","date_gmt":"2023-08-31T12:13:19","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/saturne-a-lopposition\/"},"modified":"2025-06-08T22:43:57","modified_gmt":"2025-06-08T20:43:57","slug":"saturne-a-lopposition","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/saturne-a-lopposition\/","title":{"rendered":"Saturne \u00e0 l’opposition"},"content":{"rendered":"

Capture faite le 27 ao\u00fbt lorsque Saturne \u00e9tait en opposition => le Soleil, la Terre et Saturne sont parfaitement align\u00e9s et la distance Terre-Saturne est la plus courte: cela correspond tout de m\u00eame \u00e0 plus d’un milliard de km ! La lumi\u00e8re avait mis 1h12m pour arriver jusqu’au t\u00e9lescope.
\nAvec un jet-stream, ou courant-jet, \u00e0 plus de 20 m\/s, l’image en direct n’\u00e9tait vraiment pas stable. Pour l’anectode, le lendemain, le jet-stream s’\u00e9tait calm\u00e9 (3 m\/s) donc je me suis dit que j’allais avoir l’image du si\u00e8cle … mais nuages !!<\/p>\n

\"\"<\/a><\/p>\n

Voici les d\u00e9tails de la capture:
\nT\u00e9lescope de 280mm de diam\u00e8tre avec lentille de Barlow 2.5X ainsi qu’un ADC (correcteur de dispersion atmosph\u00e9rique).
\nCet accessoire est indispensable car la plan\u00e8te n’est pas tr\u00e8s haute au-dessus de l’horizon (28\u00b0) et, sans celui-ci, vous avez un liser\u00e9 rouge\/bleu autour de la plan\u00e8te.
\nVid\u00e9o de 120 s avec une cam\u00e9ra plan\u00e9taire zwo asi 224 mc, un gain de 346, une exposition de 50 ms et une vitesse d’acquisition de 19 images\/s.<\/p>\n

Dominique,<\/p>\n\n\n

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\n Veuillez voter<\/span>\n <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

Capture faite le 27 ao\u00fbt lorsque Saturne \u00e9tait en opposition => le Soleil, la Terre et Saturne sont parfaitement align\u00e9s et la distance Terre-Saturne est la plus courte: cela correspond tout de m\u00eame \u00e0 plus d’un milliard de km ! La lumi\u00e8re avait mis 1h12m pour arriver jusqu’au t\u00e9lescope. Avec un jet-stream, ou courant-jet, \u00e0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-10448","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=10448"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10448\/revisions"}],"predecessor-version":[{"id":11238,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10448\/revisions\/11238"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=10448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=10448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=10448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}