Highlight related to an analemma: the figure the sun traces if you make a parametric plot of its position in the sky at fixed time T as a function of the day of

Highlight related to an analemma: the figure the sun traces if you make a parametric plot of its position in the sky at fixed time T as a function of the day of the year d, ie f_T(d) = (azimuth,elevation). https://solar-center.stanford.edu/art/analemma.html https://solar-center.stanford.edu/art/analemma.html