{"id":14109,"date":"2012-06-07T18:41:49","date_gmt":"2012-06-07T18:41:49","guid":{"rendered":"https:\/\/www.its.ac.id\/news\/2012\/06\/07\/amati-venus-ascladent-manfaatkan-105-tahun\/"},"modified":"2012-06-07T18:41:49","modified_gmt":"2012-06-07T18:41:49","slug":"amati-venus-ascladent-manfaatkan-105-tahun","status":"publish","type":"post","link":"https:\/\/www.its.ac.id\/news\/amati-venus-ascladent-manfaatkan-105-tahun\/","title":{"rendered":"Amati Venus, Ascladent Manfaatkan 105 Tahun"},"content":{"rendered":"<p>Semua mata tertuju pada ufuk timur langit. Bukan pada Matahari, melainkan sebuah titik hitam menyerupai titik noda di tubuh Matahari. Peristiwa ini disebut transit Venus. Secara sederhana, transit Venus sangat mirip dengan gerhana Bulan atau gerhana Matahari. Namun bedanya, pada peristiwa super langka ini, Venus yang berada di antara Matahari dan Bumi. Membuat penampakan siluet kecil bulat yang &#8221;menodai&#8221; piringan Matahari.<\/p>\n<p>Di Surabaya, peristiwa ini diamati oleh <em>Astronomy Club for Student<\/em> (Ascladent) ITS bersama <em>Surabaya Astronomy Club<\/em> (SAC). Sejak pukul enam pagi mereka telah bersiap menyaksikan fenomena langka ini lengkap dengan bekal teleskop<em> Galileoskop<\/em><em>. <\/em>Karena<em> <\/em>menurut prediksi Venus akan transit di Matahari hingga pukul 11.50 siang.<\/p>\n<p>Kenjeran Park mereka pilih sebagai lokasi obeservasi. Transit Venus ini seharusnya bisa langsung diamati lewat teleskop yang dilengkapi dengan <em>filter ultraviolet.<\/em> Namun, karena Galileoskop yang mereka bawa tidak, maka mereka harus menggunakan cara tersendiri agar tetap bisa melakukan pengamatan.<\/p>\n<p>Teknik <em>Hartmann Mask,<\/em> teknik itulah yang akhirnya digunakan komunitas pecinta astronomi ini. Yakni dengan menambahkan kertas dengan lubang kecil pada penutup lensa subjektif. Ini digunakan untuk mengurangi intensitas cahaya yang masuk ke teleskop agar bisa dilihat dengan jelas.<\/p>\n<p>Teleskop kemudian diarahkan ke Matahari. Tetapi pengamatan tidak bisa langsung dilakukan dengan mata telanjang karena bisa membakar retina. Oleh karena itu, bayangan matahari ditangkap oleh dengan kertas putih sebagai layar. Di kertas tersebut, maka akan terlihat Matahari yang di dalam badannya terdapat bintik kecil bulat hitam. &#8221;Nah itu Venus.&nbsp; Fenomena ini nggak ada impactnya buat bumi,&#8221; tutur Sevanus Kristanto Nugroho, Ketua Ascladent.<\/p>\n<p>Pengamatan ini, diakui sangat bermanfaat oleh Adhi Yudha Perkasa. Ia mengaku cara yang diterangkan Stevanus sederhana, namun bisa menambah pemahamannya tentang Astronomi. &#8221;Feneomena ini membuktikan adanya orbit dalam tatanan alam semesta. Semoga ada komunitas&nbsp; di ITS yang fokus di astronomi, tidak hanya Bosscha saja,&#8221; ucap mahasiswa Jurusan Fisika ITS ini.<\/p>\n<p>SAC sendiri meruapakan komunitas yang sudah berdiri sejak 2008 lalu. Mereka suka megamati langit. Setiap ada fenomena yang berhubungan dengan astronomi&nbsp; mereka selalu melakukan pengamatan. Seperti waktu gerhana Bulan total beberapa waktu lalu. Hal ini dijelaskan oleh Mohammad Toyyib, Koordinator Anggota SAC, yang juga hadir dalam pengamatan pagi itu. (nir\/fz)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Di belahan bumi yang lain, banyak manusia yang berkerumun untuk menyaksikan peristiwa langka terjadi. Peristiwa yang menurut prediksi para astronom tidak akan terjadi lagi selama 105 tahun. Apa yang membuat beberapa mahasiswa ITS turut serta ingin mengamatinya? Mari ikuti mereka ke Pantai Kenjeran Surabaya, Rabu (6\/6) pagi.<\/p>\n","protected":false},"author":1,"featured_media":14110,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-14109","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-berita-utama"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Amati Venus, Ascladent Manfaatkan 105 Tahun - ITS News<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.its.ac.id\/news\/amati-venus-ascladent-manfaatkan-105-tahun\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Amati Venus, Ascladent Manfaatkan 105 Tahun - ITS News\" \/>\n<meta property=\"og:description\" content=\"Di belahan bumi yang lain, banyak manusia yang berkerumun untuk menyaksikan peristiwa langka terjadi. 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