{"id":1717,"date":"2025-08-18T02:53:08","date_gmt":"2025-08-18T02:53:08","guid":{"rendered":"https:\/\/pepeh.com.br\/?p=1717"},"modified":"2025-08-19T21:51:08","modified_gmt":"2025-08-19T21:51:08","slug":"calculo-de-azimute-do-planeta-venus","status":"publish","type":"post","link":"https:\/\/pepeh.com.br\/index.php\/2025\/08\/18\/calculo-de-azimute-do-planeta-venus\/","title":{"rendered":"C\u00c1LCULO DE AZIMUTE DO PLANETA V\u00caNUS"},"content":{"rendered":"\n<p>Neste post mostro como calcular o Azimute do Plan\u00eata V\u00eanus, realizado a bordo de um navio petroleiro que se encontrava na bacia de Campos em 21\/06\/2010,  por duas maneiras diferentes:<\/p>\n\n\n\n<p>1 &#8211; Usando as f\u00f5rmulas do tri\u00e2ngulo esf\u00e9rico: vide a F\u00f3rmula dos 5 Elementos no link:<\/p>\n\n\n\n<p><a href=\"https:\/\/www.if.ufrgs.br\/~fatima\/fis2016\/trigesf\/trigesf.htm\">https:\/\/www.if.ufrgs.br\/~fatima\/fis2016\/trigesf\/trigesf.htm<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"726\" height=\"117\" src=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Formulas-Triangulo-Esferico-do-Planeta.jpeg\" alt=\"\" class=\"wp-image-1720\" srcset=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Formulas-Triangulo-Esferico-do-Planeta.jpeg 726w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Formulas-Triangulo-Esferico-do-Planeta-300x48.jpeg 300w\" sizes=\"(max-width: 726px) 100vw, 726px\" \/><\/figure>\n\n\n\n<p>2 &#8211; Usando a T\u00e1bua Norie\u00b4s, de maneira simpificada, com as f\u00f3rmulas dos par\u00e2metros constantes na pr\u00f3pria Norie\u00b4s Nautical Tables:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"237\" height=\"150\" src=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Calculo-por-Norie\u00b4s-Planeta-Venus.jpeg\" alt=\"\" class=\"wp-image-1721\"\/><\/figure>\n\n\n\n<p>3 &#8211; Dados de Entrada e Dados de Sa\u00edda:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"602\" src=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Dados-de-entrada-e-saida.jpeg\" alt=\"\" class=\"wp-image-1726\" srcset=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Dados-de-entrada-e-saida.jpeg 630w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Dados-de-entrada-e-saida-300x287.jpeg 300w\" sizes=\"(max-width: 630px) 100vw, 630px\" \/><\/figure>\n\n\n\n<p>4 &#8211; Mem\u00f3ria de C\u00e1lculo com os dados de entrada e de sa\u00edda e as f\u00f3rmulas do tri\u00e2ngulo esf\u00e9rico.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"514\" src=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Formulas-b-1-1024x514.jpeg\" alt=\"\" class=\"wp-image-1765\" srcset=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Formulas-b-1-1024x514.jpeg 1024w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Formulas-b-1-300x151.jpeg 300w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Formulas-b-1-768x385.jpeg 768w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Formulas-b-1.jpeg 1301w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>5 &#8211; Na planilha acima tamb\u00e9m est\u00e3o inseridos os c\u00e1lculos para determinar o azimute do planeta V\u00eanus utilizando a Norie\u00b4s Nautical Tables:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"492\" height=\"296\" src=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Calculo-pelas-formulas-da-Norie\u00b4s-1.jpeg\" alt=\"\" class=\"wp-image-1766\" srcset=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Calculo-pelas-formulas-da-Norie\u00b4s-1.jpeg 492w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Calculo-pelas-formulas-da-Norie\u00b4s-1-300x180.jpeg 300w\" sizes=\"(max-width: 492px) 100vw, 492px\" \/><\/figure>\n\n\n\n<p>6 &#8211; O Valor do Azimute de V\u00eanus de 297,36 graus, foi calculado, na planilha Excel, pelas f\u00f3rmulas constantes da Norie\u00b4s Nautical Tables, mas usando a Norie\u00b4s deve dar o mesmo valor aproximado.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"287\" height=\"442\" src=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Nories_Nautical_Tables_-removebg-preview.png\" alt=\"\" class=\"wp-image-1735\" style=\"width:145px;height:auto\" srcset=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Nories_Nautical_Tables_-removebg-preview.png 287w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Nories_Nautical_Tables_-removebg-preview-195x300.png 195w\" sizes=\"(max-width: 287px) 100vw, 287px\" \/><\/figure>\n\n\n\n<p>7 &#8211; Para a determina\u00e7\u00e3o do erro da Agulha Girosc\u00f3pica utilizando-se Azimute do Planeta V\u00eanus deve-se  observar as considera\u00e7\u00f5es abaixo :<\/p>\n\n\n\n<ul>\n<li>A embarca\u00e7\u00e3o deve estar com pequenos balan\u00e7os, pois com balan\u00e7os grandes fica desconfort\u00e1vel e imprecisa a medi\u00e7\u00e3o do azimute com a alidade<\/li>\n\n\n\n<li>Usar  altura angular do astro, de prefer\u00eancia  abaixo de cerca de 30 graus, pois com alturas maiores fica dif\u00edcil posicionar a alidade com firmeza para marcar o azimute devido balan\u00e7os e caturros. Com mar sem ondas at\u00e9 se consegue com alturas maiores. No momento da medi\u00e7\u00e3o do azimute do planeta v\u00eanus o mesmo estava com 10,8 graus.<\/li>\n\n\n\n<li>Utilizar o Star Finder and Identifier<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"593\" src=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/2102-D-annotatedStr-Finder.jpeg\" alt=\"\" class=\"wp-image-1740\" style=\"width:301px;height:auto\" srcset=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/2102-D-annotatedStr-Finder.jpeg 640w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/2102-D-annotatedStr-Finder-300x278.jpeg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<ul>\n<li>Usar um rel\u00f3gio de pulso com a hora sincronizada com o tempo fornecido por um GPS, ou cron\u00f4metro de bordo, se houver. Como a varia\u00e7\u00e3o do azimute \u00e9 muito pequena para poucos segundos ou minutos o erro \u00e9 insignificante se tomar o tempo de um rel\u00f3gio de pulso sincronizado com o GPS no momento da medi\u00e7a\u00f5 do azimute na alidade.<\/li>\n\n\n\n<li>Erro de at\u00e9 1 grau na Agulha Girosc\u00f3pica \u00e9 considerado normal. Acima disso manter observa\u00e7\u00e3o cont\u00ednua na utiliza\u00e7\u00e3o dos rumos da Agulha Girosc\u00f3pica. <\/li>\n\n\n\n<li>Desvios de at\u00e9 5 graus na Agulha Magn\u00e9tica s\u00e3o considerados normais, acima disso manter observa\u00e7\u00e3o cont\u00ednua na utiliza\u00e7\u00e3o dos rumos da Agulha Magn\u00e9tica e avaliar uma compensa\u00e7\u00e3o da agulha magn\u00e9tica, que  deve ser realizada de tr\u00eas em tr\u00eas anos para embarca\u00e7\u00f5es com arquea\u00e7\u00e3o bruta igual ou superior a 150, e sempre que os desvios ultrapassem 5 graus.&nbsp;<\/li>\n\n\n\n<li>O mais importante a se observar \u00e9 a const\u00e2ncia no valor do erro da Agulha Girosc\u00f3pica, ou no valor do Desvio da Agulha Magn\u00e9tica . Valores que n\u00e3o apresentam grandes varia\u00e7\u00f5es e oscila\u00e7\u00f5es acima dos limites considerados normais com o tempo considera-se normal,  at\u00e9 o pr\u00f3ximo porto de recurso. Muitas vezes um ajuste de latitude no controle da Agulha Girosc\u00f3pica resolve o problema, mas \u00e0s vezes \u00e9 necess\u00e1rio a substitui\u00e7\u00e3o do girosc\u00f3pio por um t\u00e9cnico especializado ou uma compensa\u00e7\u00e3o da Agulha Magn\u00e9tica por algu\u00e9m habilitado:<\/li>\n\n\n\n<li>Utilizar a planilha abaixo:<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-d9173f55-f827-4fb0-a3e4-e49479fbcd35\" href=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-b.xls\">028-Azimute-de-Venus-b<\/a><a href=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-b.xls\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-d9173f55-f827-4fb0-a3e4-e49479fbcd35\">Download<\/a><\/div>\n\n\n\n<p><\/p>\n\n\n\n<p>8 &#8211; Vers\u00f5es sobre Agulha Girosc\u00f3pica e Agulha Magn\u00e9tica pela IA.<\/p>\n\n\n\n<div data-wp-interactive=\"\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!selectors.core.file.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Ajustes-da-Ag-Girosc-e-Magnetica.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Embed of Ajustes-da-Ag-Girosc-e-Magnetica.\"><\/object><a id=\"wp-block-file--media-eadb86fd-baa8-463b-a358-07c9accd4635\" href=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Ajustes-da-Ag-Girosc-e-Magnetica.pdf\">Ajustes-da-Ag-Girosc-e-Magnetica<\/a><a href=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/Ajustes-da-Ag-Girosc-e-Magnetica.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-eadb86fd-baa8-463b-a358-07c9accd4635\">Download<\/a><\/div>\n\n\n\n<p>Essa planilha tamb\u00e9m fornece o Desvio da Agulha Magn\u00e9tica e tamb\u00e9m tem uma guia com os dados j\u00e1 compilados para escritura\u00e7\u00e3o no Livro de Azimutes da embarca\u00e7\u00e3o, lembrando que o Livro de Azimutes \u00e9 um item pass\u00edvel de inspe\u00e7\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"198\" src=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Livro-de-Azimutes-1024x198.jpeg\" alt=\"\" class=\"wp-image-1742\" srcset=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Livro-de-Azimutes-1024x198.jpeg 1024w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Livro-de-Azimutes-300x58.jpeg 300w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Livro-de-Azimutes-768x149.jpeg 768w, https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/028-Azimute-de-Venus-Livro-de-Azimutes.jpeg 1316w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>OUTROS LINKS:<\/p>\n\n\n\n<ul>\n<li>Norie\u00b4s Nautical Tables: https:\/\/www.amazon.com.br\/Nories-Nautical-Tables-Glance\/dp\/0852881606<\/li>\n\n\n\n<li>Trigonometria Esf\u00e9rica da UFRGS : <a href=\"https:\/\/www.if.ufrgs.br\/~fatima\/fis2016\/trigesf\/trigesf.htm\">https:\/\/www.if.ufrgs.br\/~fatima\/fis2016\/trigesf\/trigesf.htm<\/a><\/li>\n\n\n\n<li>Vis\u00e3o geral criada por IA, para determina\u00e7\u00e3o do erro da Agulha Girosc\u00f3pica: <\/li>\n<\/ul>\n\n\n\n<div data-wp-interactive=\"\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!selectors.core.file.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/ate-quantos-graus-de-altura-deve-se-usar-o-azimute-de-um-planeta-para-calculo-do-erro-da-agulha-giroscopica-Pesquisa-Google.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Embed of ate-quantos-graus-de-altura-deve-se-usar-o-azimute-de-um-planeta-para-calculo-do-erro-da-agulha-giroscopica-Pesquisa-Google.\"><\/object><a id=\"wp-block-file--media-46b5d8c1-3f91-4707-8ce2-535ffc3a2fb5\" href=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/ate-quantos-graus-de-altura-deve-se-usar-o-azimute-de-um-planeta-para-calculo-do-erro-da-agulha-giroscopica-Pesquisa-Google.pdf\">ate-quantos-graus-de-altura-deve-se-usar-o-azimute-de-um-planeta-para-calculo-do-erro-da-agulha-giroscopica-Pesquisa-Google<\/a><a href=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/ate-quantos-graus-de-altura-deve-se-usar-o-azimute-de-um-planeta-para-calculo-do-erro-da-agulha-giroscopica-Pesquisa-Google.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-46b5d8c1-3f91-4707-8ce2-535ffc3a2fb5\">Download<\/a><\/div>\n\n\n\n<ul>\n<li>David Burch Navigation Blog :  <a href=\"https:\/\/davidburchnavigation.blogspot.com\/2019\/11\/navigators-library.html\">Navigator&#8217;s Library for Extended Ocean Voyaging<\/a><\/li>\n\n\n\n<li>My Sea Time:  <a href=\"https:\/\/www.myseatime.com\/blog\/detail\/star-sight\">https:\/\/www.myseatime.com\/blog\/detail\/star-sight<\/a><\/li>\n\n\n\n<li>Vis\u00e3o geral criada por IA, para limites do erro da Agulha Girosc\u00f3pica e da Agulha Magn\u00e9tica:  <\/li>\n<\/ul>\n\n\n\n<div data-wp-interactive=\"\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!selectors.core.file.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/ate-quantos-graus-de-erro-da-agulha-giroscopica-considera-se-normal-Pesquisa-Google.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Embed of ate-quantos-graus-de-erro-da-agulha-giroscopica-considera-se-normal-Pesquisa-Google.\"><\/object><a id=\"wp-block-file--media-95797a49-f882-4b86-94b8-121e693ea949\" href=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/ate-quantos-graus-de-erro-da-agulha-giroscopica-considera-se-normal-Pesquisa-Google.pdf\">ate-quantos-graus-de-erro-da-agulha-giroscopica-considera-se-normal-Pesquisa-Google<\/a><a href=\"https:\/\/pepeh.com.br\/wp-content\/uploads\/2025\/08\/ate-quantos-graus-de-erro-da-agulha-giroscopica-considera-se-normal-Pesquisa-Google.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-95797a49-f882-4b86-94b8-121e693ea949\">Download<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Neste post mostro como calcular o Azimute do Plan\u00eata V\u00eanus, realizado a bordo de um navio petroleiro que se encontrava na bacia de Campos em 21\/06\/2010, por duas maneiras diferentes: 1 &#8211; Usando as f\u00f5rmulas do tri\u00e2ngulo esf\u00e9rico: vide a F\u00f3rmula dos 5 Elementos no link: https:\/\/www.if.ufrgs.br\/~fatima\/fis2016\/trigesf\/trigesf.htm 2 &#8211; Usando a T\u00e1bua Norie\u00b4s, de maneira&hellip; <br \/> <a class=\"read-more\" href=\"https:\/\/pepeh.com.br\/index.php\/2025\/08\/18\/calculo-de-azimute-do-planeta-venus\/\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,14,1,7],"tags":[73,77,76,75,78,74],"_links":{"self":[{"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/posts\/1717"}],"collection":[{"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/comments?post=1717"}],"version-history":[{"count":24,"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/posts\/1717\/revisions"}],"predecessor-version":[{"id":1774,"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/posts\/1717\/revisions\/1774"}],"wp:attachment":[{"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/media?parent=1717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/categories?post=1717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pepeh.com.br\/index.php\/wp-json\/wp\/v2\/tags?post=1717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}