Where does the sun set? - Earth Science Stack Exchange
网页2023年7月4日 · Where it sets depends on 1) your latitude and 2) the Sun's declination, which varies throughout the year between -23° (December) and +23° (June). Consider the following pictures, taken from A Quick Guide to the Celestial Sphere by Jim Kaler .
Why can I look directly at the sun during a sunset but not at noon?
网页2016年3月10日 · It's hazy, with the bits of sky near to the sun also giving off a fair amount of light. That additional light is some of the light that was scattered from an otherwise direct beam. If it were all re concentrated to a single point, it would be brighter/more painful to look at (though not as bright as the noon sunlight- for shaky statistical and ...
What causes the colors seen during a sunset / sunrise?
网页2015年4月24日 · Because of the low angle, the light has to travel through more of the atmosphere before it reaches the Earth's surface and the eyes of anyone watching either the Sun rise or the Sun set. The colour of the Sun's light is white, being composed of the colours of the light spectrum: red, orange, yellow, green, blue, indigo and violet.
Why does it feel hotter at night? - Earth Science Stack Exchange
网页At night, the sun sets and the outside atmosphere is allowed to emit infrared radiation. If there are clouds out, they emit infrared radiation back down to the surface. The atmosphere, itself, also emits radiation back (greenhouse effect), so the surface doesn't get too cold.
Is there an instance where the sun sets or rises partly, then return ...
网页2017年2月23日 · Yes, such sunrises happens every year at the beginning and end of the polar nights at high latitudes. One can have a few days with a glimpse of the sun but disqualified sunsets and sunrises. Sunsets occur at the end of the midnight sun period by the end of the summer, the first sunset is not complete. Sun …
atmosphere - Golden and red colored light even after sunset
网页2014年11月19日 · As the sun sets the optical path for a photon passing through the atmosphere to your eye increases. Because of this increased distance through the atmosphere, more scattering occurs and the shorter wavelengths are scattered away, leaving the longer wavelengths.
meteorology - Why doesn't the sun reach its highest point …
网页2015年11月14日 · Then consider a second fictitious Sun travelling along the celestial equator at a constant speed and coinciding with the first fictitious Sun at the equinoxes. This second fictitious sun is the mean Sun... This second step removes the variation due to axial tilt; again, the matching-points are chosen for symmetry. J. Meeus (1998).
evaporation - Sun's Effect on Water Vapor in the Air - Earth …
网页2017年12月5日 · UV light high in the atmosphere can remove hydrogen from water-vapor molecules, but in very tiny amounts relative to the total amount of water-vapor in the atmosphere (explained in the answer. below). Sunlight does play a role in evaporation.of surface water, as does wind and for rivers, terrain and vertical drop.
meteorology - Atmospheric conditions needed that blocks all …
网页2019年7月5日 · Sun sets in the West, and any air conditions to the west could affect the sunset. Is that in line-of-sight? Did the air pollution reach higher in the atmosphere around China? With line-of-sight, that would be around 10 - …
On the light difference between morning and afternoon
网页2018年2月4日 · What I mean is this. In the morning the rotation of the Earth is towards the Sun, increasing the frequency of the wavelengths of light we observe. Shorter wavelengths tend toward the blue hues, and the light of the day appears blueish. In the afternoon the rotation of the earth is away from the sun causing longer observed wavelengths or ...