Position articles
What two primary factors govern the Sun's position in the sky?
What measurement defines the angular separation between the Sun and the point directly overhead (the zenith)?
What is the primary reason the Sun's path varies so dramatically between summer and winter?
What occurs when the Sun's declination reaches its maximum negative value around December 21?
How does longitude primarily influence the calculation of the Sun's position?
In the Northern Hemisphere, what is the azimuth angle when the Sun reaches its highest point at solar noon?
What is true about the Sun's path during the equinoxes (around March 20 and September 22)?
How does atmospheric refraction affect the apparent position of the Sun?
For a structure in the Northern Hemisphere seeking to maximize passive solar heating during winter, what is the recommended design consideration related to the low winter sun?
If a time zone is standardized to $75^ ext{circ}$ W longitude, and a local measurement shows solar noon occurs 20 minutes later than official clock noon, what is the location's approximate longitude?
What is the fundamental necessity for all known life forms that requires Earth's precise location?
Through what process does the Sun generate the energy that drives weather and powers photosynthesis on Earth?
If Earth orbited too close to the Sun, what outcome is suggested for its surface water?
Where on Earth does the Sun's energy strike the surface most perpendicularly, concentrating the heat?
What is the direct cause of the seasons experienced on Earth?
Approximately what is the current axial tilt of Earth that causes seasons?
What is the approximate distance from the Sun that defines one Astronomical Unit (AU)?
What critical function does the Moon perform regarding Earth's orbital dynamics?
Which form of radiation, radiated back from the warmed surface, is trapped by atmospheric gases to create the greenhouse effect?
What is the estimated average global temperature of Earth when the atmosphere acts as a blanket?
What consequence results from Earth's orbit being near-circular with low eccentricity?
What two primary variables dictate the precise location of the sun in the sky?
On which two specific days of the year does the sun rise precisely due east and set precisely due west everywhere on the globe?
What causes the variation in the exact point on the horizon where the sun appears or disappears outside of the equinoxes?
What describes the sun's apparent path during summer in the Northern Hemisphere?
How is the solar azimuth angle measured?
If the sun has an altitude of $90^ $, what is its position relative to the observer?
What defines the moment of solar noon?
When viewing the sun at solar noon from a location in the Southern Hemisphere, what direction is it located?
What atmospheric phenomenon causes the sun to appear slightly higher than its actual geometric position when near the horizon?
How does the general path of the sun in the Southern Hemisphere during their summer compare to the Northern Hemisphere?
What happens to the sunrise azimuth benchmark over the course of several weeks when moving away from a solstice toward an equinox?