Several sky models are present in the literature.

It is quite difficult to choose a proper one, therefore, only a very simple one is proposed here. It is based upon 2 coefficients.

This widget corresponds to the second coefficient entering in this solar model.

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SYRTHES version : 4.3
Name help file : doubleSpinBox_5.html
I. Rupp, C. Peniguel - may 2014
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