{"id":2298,"date":"2019-08-06T09:23:08","date_gmt":"2019-08-06T07:23:08","guid":{"rendered":"http:\/\/www.arnaudom.fr\/wordpress\/?page_id=2298"},"modified":"2020-08-06T09:15:23","modified_gmt":"2020-08-06T07:15:23","slug":"elementor-2298","status":"publish","type":"page","link":"https:\/\/www.arnaudom.fr\/wordpress\/elementor-2298\/","title":{"rendered":"equilibre"},"content":{"rendered":"\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t

Equilibrage du t\u00e9lescope<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t
\n\t\t\t\t

Il est n\u00e9cessaire de r\u00e9aliser l’\u00e9quilibrage du t\u00e9lescope, car cela facilite grandement le pointage des objets et leur suivi. Normalement, quand on desserre les deux axes et que le t\u00e9lescope est bien \u00e9quilibr\u00e9, le tube ne devrait pratiquement pas bouger. Si \u00e7a n’est pas le cas, il est temps de le faire ! Cette op\u00e9ration est \u00e0 r\u00e9aliser de pr\u00e9f\u00e9rence de jour<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t

1\u00e8re \u00e9tape :<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t
\"\"<\/figure>

on commence par serrer le frein de l'axe des ascensions droites, puis on place le tube \u00e0 l'horizontale, contrepoids vers le bas, comme sur la photo ci-contre (pour cela, il faut d\u00e9visser la vis de latitude).\n\nMaintenant, on desserre le frein de l'axe des d\u00e9clinaisons, et on observe dans quel sens le tube va tourner.\n\nPour l'\u00e9quilibrer, il suffit de d\u00e9placer le tube dans les colliers de fixation (voir fl\u00e8ches sur la photo) jusqu'\u00e0 l'obtention d'une stabilit\u00e9 parfaite.\n\nPour marquer la position d'\u00e9quilibre, on peut utiliser deux bouts de scotch qu'on place sur le tube devant les colliers de fixation.\n\nDe cette fa\u00e7on, la prochaine fois que vous montez le t\u00e9l\u00e9scope, vous n'avez plus qu'\u00e0 positionner le tube \u00e0 l'aide des rep\u00e8res faits avec le scotch. Ca \u00e9vite de passer un quart d'heure \u00e0 \u00e9quilibrer le tube en pleine nuit, ce qui n'est pas toujours tr\u00e8s \u00e9vident ! <\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t
\n\t\t\t\t

Un peu de scotch en guise de rep\u00e8re…<\/strong><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t
\n\t\t\t\t

Et voil\u00e0 !<\/strong><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t

2\u00e8me \u00e9tape :<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t
\"\"<\/figure>

maintenant, on serre le frein de l'axe des d\u00e9clinaisons, on desserre le frein de l'axe des ascensions droites et on place le tube comme sur la photo ci-contre, le contrepoids \u00e0 l'horizontale.\n\nOn regarde dans quel sens l'axe pivote, et pour l'\u00e9quilibrer, on va d\u00e9placer le contrepoids le long de la tige (voir les fl\u00e8ches sur la photo), jusqu'\u00e0 l'obtention de la stabilit\u00e9.\n\nDe m\u00eame, on peut placer sur la tige du contrepoids une marque de scotch qui servira de rep\u00e8re pour le montage de l'instrument.\n\nEt voil\u00e0, le t\u00e9lescope est \u00e9quilibr\u00e9 ! <\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t
\n\t\t\t\t

La petite marque de scotch sur la tige du contrepoids…<\/strong><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t
\n\t\t\t\t

Remarque :<\/span><\/strong> en pratique, il est difficile d’obtenir une stabilit\u00e9 parfaite, car la position excentr\u00e9e du porte-oculaire sur un t\u00e9l\u00e9scope de Newton comme le 130\/900 a toujours tendance \u00e0 le d\u00e9s\u00e9quilibrer un peu. L’important, c’est que quand on pointe le t\u00e9l\u00e9scope dans une direction et qu’on desserre les freins, le tube reste pratiquement dans la m\u00eame position. On peut dans ce cas-l\u00e0 consid\u00e9rer que le t\u00e9l\u00e9scope est correctement \u00e9quilibr\u00e9.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Equilibrage du t\u00e9lescope Il est n\u00e9cessaire de r\u00e9aliser l’\u00e9quilibrage du t\u00e9lescope, car cela facilite grandement le pointage des objets et leur suivi. Normalement, quand on desserre les deux axes et que le t\u00e9lescope est bien \u00e9quilibr\u00e9, le tube ne devrait pratiquement pas bouger. Si \u00e7a n’est pas le cas, il est temps de le faire …<\/p>\n

equilibre<\/span> Lire la suite\u00a0\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-2298","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/2298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/comments?post=2298"}],"version-history":[{"count":10,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/2298\/revisions"}],"predecessor-version":[{"id":4838,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/2298\/revisions\/4838"}],"wp:attachment":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/media?parent=2298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}