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Gerhana Matahari Penuh Dilihat dari Australia
Thursday, 15 November 2012 at 17:21 | 0 Comment [s]

A total solar eclipse was visible from the Northern tip of Australia on Nov. 13, 2012 at 3:35 EST.


A total solar eclipse was visible from the Northern tip of Australia on Nov. 13, 2012 at 3:35 EST. The light halo visible around the edges of the moon is the sun's atmosphere, the corona. Image courtesy of Romeo Durscher

On Nov. 13, 2012, a narrow corridor in the southern hemisphere experienced a total solar eclipse. The corridor lay mostly over the ocean but also cut across the northern tip of Australia where both professional and amateur astronomers gathered to watch.

During a solar eclipse one can see – using appropriate instruments to protect the eyes since you should never look at the sun directly – dim structures around the edges of the sun. These structures are the sun's atmosphere, the corona, which extends beyond the more easily seen surface, known as the photosphere.

In modern times, we know that the corona is constantly on the move. Made of electrified gas, called plasma, the solar material dances in response to huge magnetic fields on the sun. Structural changes in these magnetic fields can also give rise to giant explosions of radiation called solar flares, or expulsions of solar material called coronal mass ejections, CMEs – which make the corona a particularly interesting area to study.

Translations Here :-


Satu gerhana matahari penuh adalah dilihat dari hujung Utara Australia pada Nov 13, 2012 pada 3:35 EST. Halo cahaya yang boleh dilihat di sekitar tepi bulan adalah suasana matahari, korona. Imej ihsan Romeo Durscher

Pada Nov 13, 2012, koridor sempit di hemisfera selatan mengalami gerhana matahari penuh. Koridor terletak kebanyakannya di atas lautan tetapi juga merentasi hujung utara Australia di mana kedua-dua ahli astronomi profesional dan amatur berkumpul untuk menonton.

Semasa gerhana matahari satu boleh melihat - menggunakan instrumen yang sesuai untuk melindungi mata kerana anda tidak perlu melihat matahari secara langsung - struktur malap sekitar tepi matahari. Ini adalah struktur atmosfera matahari, korona, yang melampaui permukaan lebih mudah dilihat, yang dikenali sebagai fotosfera.

Pada zaman moden, kita tahu bahawa korona adalah sentiasa bergerak. Diperbuat gas elektrik, yang dipanggil plasma, tarian bahan solar dalam tindak balas besar kepada medan magnet pada matahari. Perubahan struktur dalam medan magnet ini juga boleh menimbulkan letupan gergasi radiasi dipanggil nyala suria, atau pemecatan bahan solar dipanggil korona ejections massa, CMEs - yang membuat korona kawasan yang amat menarik untuk belajar.

Sources - NASA







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