Suppose you observe the same constellation from above at the same time in the ev

Science
Tutor: None Selected Time limit: 1 Day

Suppose you observe the same constellation from above at the same time in the evening (e.g. at 9 pm) for an entire year. Describe its change in position or orientation throughout the year.

Mar 5th, 2015

for the rest of the year, the Sun's path and its rising and setting locations vary. As seen from Iowa, during the winter the Sun rises in the southeast and sets in the southwest. In the summer it rises in the northeast and sets in the northwest. There are two days when the rising and setting locations are at their most extreme (furthest north or furthest south). These days are also the dates that the Sun travels a path that is also an extreme - very long and high above the horizon or very short and low to the horizon. These are the days known as the Winter Solstice, which occurs around December 21 (shortest day), while the other is called, oddly enough, the Summer Solstice, and it occurs around June 21. Of course, you know these days as the beginning of Winter and Summer. Like the dates of Equinoxes, they have really nothing to do with the weather, but with the position of the Sun relative to the Celestial Equator.

Mar 5th, 2015

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