I've always been fascinated with astronomy and the relationship of the sun to our seasons on earth. Since we've been stuck in the clouds and cold weather for much of the week, I thought you might enjoy reading about what the sun is up to behind the gray curtains of cloud cover here in the Tri-State.
As you know, the days are getting longer as we approach the start of spring and will continue to get longer right up to the first day of Summer in mid June. The sun follows a predictable and beautiful pattern through the year. This figure 8 pattern is called the analemma. The middle of the figure 8 is where the equinoxes occur, both spring (vernal) and fall (autumnal). On these days, the sun is directly over the equator and we get approximately 12 hours and day and 12 hours of night.
On the longest day of the year, the summer solstice, the sun is directly over the Tropic of Cancer, and is as far north as it will get during the year. On the flip side, the sun is directly over the Tropic of Capricorn on the winter solstice in December, our shortest day of the year.
Below is an account of imaging the analemma by the photographer, Anthony Aviomemitis, whose images appear in this blog entry.