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arXiv · 1610.07704

Ludendorff Coronal Flattening Index of the Total Solar Eclipse on March 9, 2016

Tiar Dani·Rhorom Priyatikanto·Abdul Rachman
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Abstract

Ludendorff coronal flattening index of the Total Solar Eclipse (TSE) on March 9, 2016, was calculated at various distances in solar radius. As a result, we obtained the coronal flattening index $\left(\epsilon =a+b\right)$ at a distance of 2 solar radii is 0.16. The $24^{th}$ solar cycle phase based on the 2016 TSE event obtained -0.64 which showed the corona is pre-minimum type. Resulted coronal flattening index value gives a predicted maximum amplitude of the monthly sunspot number ($W_{max}$) for the $25^{th}$ solar cycle to be $70\pm65$. Therefore, the solar activity for $25^{th}$ solar cycle predicted to be lower than the current solar cycle, which has a maximum sunspot number value of 146 in February 2014

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Tiar Dani, Rhorom Priyatikanto, Abdul Rachman. 2016-10-25. Ludendorff Coronal Flattening Index of the Total Solar Eclipse on March 9, 2016. https://doi.org/10.1088/1742-6596%2F771%2F1%2F012005

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