Search results
Results From The WOW.Com Content Network
Sunrise, sunset, or sun position for any location – U.S. only; Sunrise, sunset and day length for any location – Worldwide; Rise/Set/Transit/Twilight Data – U.S. only; Astronomical Information Center; Converting Between Julian Dates and Gregorian Calendar Dates; Approximate Solar Coordinates; Algorithms for Computing Astronomical Phenomena
In Los Angeles, California, at an hour after sunrise or an hour before sunset, the sun has an altitude of about 10–12°. [5] For a location closer to the Equator , the same altitude is reached in less than an hour, and for a location farther from the equator, the altitude is reached in more than one hour.
Another issue is that the Alaskan mainland's single time zone, which approximates solar time in the capital, Juneau, leads to a large disparity between civil time and solar time for much of the state, with solar noon occurring as late as 2:10 p.m. in the population centers of Anchorage and Fairbanks, and as late as 3:23 p.m. in places such as Nome.
Sun path, sometimes also called day arc, refers to the daily (sunrise to sunset) and seasonal arc-like path that the Sun appears to follow across the sky as the Earth rotates and orbits the Sun. The Sun's path affects the length of daytime experienced and amount of daylight received along a certain latitude during a given season.
An Excel workbook with VBA functions for twilight (dawn and dusk), sunrise, solar noon, sunset, and solar position (azimuth and elevation) by Greg Pelletier, translated from NOAA's online calculator for sunrise/sunset; Time and Date to find the current state of the sun in a specified place. "Twilight" . Encyclopædia Britannica. Vol. 27 (11th ...
Calculate the sunset time, which is the solar noon time plus the sunset hour angle in degree divided by 15; Use the sunset time as input to the solar geometry routine to get the solar azimuth angle at sunset. An interesting feature in the figure on the right is apparent hemispheric symmetry in regions where daily sunrise and sunset actually occur.
Sunrise seen over the Atlantic Ocean through cirrus clouds on the Jersey Shore at Spring Lake, New Jersey, U.S. Sunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning, [1] at the start of the Sun path. The term can also refer to the entire process of the solar disk crossing the horizon.
If the streets on the grid were rigorously north-south and east–west, then both sunrise and sunset would be aligned on the days of the vernal and autumnal equinoxes (which occur around March 20 and September 23 respectively). In Baltimore, for instance, sunrise aligns on March 25 and September 18 and sunset on March 12 and September 29. [21]