Views: 249<\/p>[et_pb_section fb_built=”1″ _builder_version=”3.26.6″ custom_margin=”-45px|||||” custom_padding=”||30px|||”][et_pb_row column_structure=”1_2,1_2″ _builder_version=”3.26.6″ custom_margin=”-20px|auto||auto||” custom_padding=”||0px|||”][et_pb_column type=”1_2″ _builder_version=”3.26.6″][et_pb_text _builder_version=”3.26.6″ text_font=”||||||||” text_text_align=”center” text_text_color=”#0C71C3″ text_font_size=”16px” text_line_height=”1.6em”]\n
C’est le moment de l’ann\u00e9e o\u00f9 la dur\u00e9e du jour et de la nuit est \u00e9gale sur l’ensemble de la plan\u00e8te (12 h), et o\u00f9 le gain de luminosit\u00e9 est le plus fort dans l’h\u00e9misph\u00e8re nord, avec 4 minutes de soleil en plus par jour en France.<\/p>\n
<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”3.26.6″][et_pb_image src=”https:\/\/www.astrobreuillet.fr\/wordpress\/wp-content\/uploads\/2020\/03\/printemsps.jpg” _builder_version=”3.26.6″ border_radii=”on|20px|20px|20px|20px” border_color_all=”#0C71C3″ box_shadow_style=”preset1″ box_shadow_blur=”13px”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”3.26.6″ custom_margin=”-6px|auto||auto||”][et_pb_column type=”1_2″ _builder_version=”3.26.6″][et_pb_image src=”https:\/\/www.astrobreuillet.fr\/wordpress\/wp-content\/uploads\/2020\/03\/Equinoxes_et_solstices.png” _builder_version=”3.26.6″][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”3.26.6″][et_pb_text _builder_version=”3.26.6″ text_font_size=”16px” text_line_height=”1.6em” min_height=”118px” custom_margin=”-1px||-3px|||” custom_padding=”39px|||||”]\n
Mais pourquoi le printemps 2020 arrive-t-il si t\u00f4t? D’abord parce qu’une ann\u00e9e solaire ne dure pas exactement 365 jours et un quart. Ainsi, tous les quatre ans, la date du solstice fait un saut de 45 minutes en arri\u00e8re. Et ce m\u00eame si les autres ann\u00e9es, elle avance plut\u00f4t d’environ 6 heures.<\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”3_5,2_5″ _builder_version=”3.26.6″ min_height=”274px”][et_pb_column type=”3_5″ _builder_version=”3.26.6″][et_pb_text _builder_version=”3.26.6″ text_text_align=”right” text_font_size=”16px” text_line_height=”1.6em” min_height=”213px” custom_margin=”0px|-68px|0px|0px|false|false” custom_padding=”28px|||||”]\n
C’est ensuite le jeu des ann\u00e9es bissextiles qui intervient. En r\u00e8gle g\u00e9n\u00e9rale, les ann\u00e9es divisibles par 100 – comme 1700, 1800 ou 1900 – ne doivent pas \u00eatre bissextiles. Mais l’an 2000 ayant en plus \u00e9t\u00e9 divisible par 4 a bien \u00e9t\u00e9 bissextil. Et l’ajout d’un 29 f\u00e9vrier cette ann\u00e9e-l\u00e0 a fait avancer la date de l’\u00e9quinoxe.<\/p>\n
C’est la combinaison de ces deux ph\u00e9nom\u00e8nes qui nous offre, en cette ann\u00e9e 2020, une fin d’hiver astronomique exceptionnellement pr\u00e9coce. au cours d’une d\u00e9mo sur twitch.com<\/em><\/p>\n le 20 mars 2020.<\/em><\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”3.26.6″][et_pb_video _builder_version=”3.26.6″ src=”https:\/\/www.youtube.com\/watch?v=r-MdBQgBaHU”][\/et_pb_video][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"excerpt":{"rendered":" L’\u00e9quinoxe de printemps a eu lieu ce vendredi 20 mars, tr\u00e8s t\u00f4t le matin \u00e0 4h40 heure locale de Paris. C’est le moment de l’ann\u00e9e o\u00f9 la dur\u00e9e du jour et de la nuit est \u00e9gale sur l’ensemble de la plan\u00e8te (12 h), et o\u00f9 le gain de luminosit\u00e9 est le plus fort dans l’h\u00e9misph\u00e8re […]<\/p>\n","protected":false},"author":6,"featured_media":27906,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","_s2mail":"yes","footnotes":""},"categories":[3],"tags":[],"class_list":["post-27902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evenement","et-has-post-format-content","et_post_format-et-post-format-standard"],"_links":{"self":[{"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/27902"}],"collection":[{"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27902"}],"version-history":[{"count":15,"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/27902\/revisions"}],"predecessor-version":[{"id":27932,"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/27902\/revisions\/27932"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/27906"}],"wp:attachment":[{"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astrobreuillet.fr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
(sources Futura sciences<\/em>)<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=”2_5″ _builder_version=”3.26.6″][et_pb_image src=”https:\/\/www.astrobreuillet.fr\/wordpress\/wp-content\/uploads\/2020\/03\/atelierweb1.jpg” align=”center” _builder_version=”3.26.6″ border_radii=”on|15px|15px|15px|15px” box_shadow_style=”preset1″ box_shadow_blur=”15px” height=”1000px” max_height=”272px” custom_margin=”-48px||||false|false” custom_padding=”0px|||||”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”3.26.6″ column_structure=”2_5,3_5″ min_height=”310px” custom_padding=”||0px|||” custom_margin=”|auto|7px|auto||”][et_pb_column type=”2_5″ _builder_version=”3.26.6″][et_pb_text _builder_version=”3.26.6″ text_text_align=”center” text_text_color=”#0C71C3″ custom_margin=”||1px|||” custom_padding=”95px||90px|||”]\n
Cet article \u00e0 \u00e9t\u00e9 mis en ligne <\/em><\/p>\n