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Daylight
Daylight is the combination of all direct and indirect sunlight Sunlight is a portion of the given off by the , in particular , , and light. On , sunlight is and through , and is obvious as when the Sun is above the . When direct is not blocked by s, it is experienced as sunshine, a combination of b ... during the daytime On Earth, daytime is the period of the day during which a given location experiences Daylight, natural illumination from direct sunlight. Daytime occurs when the Sun appears above the local horizon, that is, anywhere on the globe's Hemisphere .... This includes direct sunlight Sunlight is a portion of the given off by the , in particular , , and light. On , sunlight is and through , and is obvious as when the Sun is above the . When direct is not blocked by s, it is experienced as sunshine, a combination of b ..., diffuse sky radiation upright=1.9, The visible spectrum, about 380 to about 740 nanometers (nm), shows the atmosp ...
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Artificial Sky
The artificial sky is a daylight simulation device that replicates the light coming from the sky dome. An Architectural model, architectural scale model or 1:1 full-scaled aircraft is placed under an artificial sky to predict daylight penetration within buildings or aircraft that subjects to different situations, complex geometries, or heavily obstructed windows. The concept of the artificial sky was derived due to heliodon’s limitation in providing a stable lighting environment for evaluating the diffuse skylight component. Description An artificial sky is primarily utilized in the field of architecture to analyze daylight in buildings and spaces. Architectural students, architects, researchers, lighting designers, lighting engineers, Automotive industry, automotive and aerospace engineering use the simulation device for various purposes. Several versions of the instrument are used in laboratories of architectural schools and practice for daylighting studies and research. Lightin ...
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Daylight
Daylight is the combination of all direct and indirect sunlight Sunlight is a portion of the given off by the , in particular , , and light. On , sunlight is and through , and is obvious as when the Sun is above the . When direct is not blocked by s, it is experienced as sunshine, a combination of b ... during the daytime On Earth, daytime is the period of the day during which a given location experiences Daylight, natural illumination from direct sunlight. Daytime occurs when the Sun appears above the local horizon, that is, anywhere on the globe's Hemisphere .... This includes direct sunlight Sunlight is a portion of the given off by the , in particular , , and light. On , sunlight is and through , and is obvious as when the Sun is above the . When direct is not blocked by s, it is experienced as sunshine, a combination of b ..., diffuse sky radiation upright=1.9, The visible spectrum, about 380 to about 740 nanometers (nm), shows the atmosp ...
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Daytime
Daytime as observed on Earth Earth is the third planet from the Sun and the only astronomical object known to harbour and support life. 29.2% of Earth's surface is land consisting of continents and islands. The remaining 70.8% is Water distribution on Earth, covered wi ... is the period of the day The word day has a number of meanings, depending on the context it is used such as of astronomy, physics, and various calendar systems. As a term in physics and astronomy it is approximately the period during which the Earth completes one ro ... during which a given location experiences natural illumination from direct sunlight Sunlight is a portion of the given off by the , in particular , , and light. On , sunlight is and through , and is obvious as when the Sun is above the . When direct is not blocked by s, it is experienced as sunshine, a combination of b .... Daytime occurs when the Sun The Sun is the star A star is an astronomical obj ...
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Sunlight
Sunlight is a portion of the electromagnetic radiation In physics Physics is the natural science that studies matter, its Elementary particle, fundamental constituents, its Motion (physics), motion and behavior through Spacetime, space and time, and the related entities of energy and force. ... given off by the Sun The Sun is the star A star is an astronomical object consisting of a luminous spheroid of plasma (physics), plasma held together by its own gravity. The List of nearest stars and brown dwarfs, nearest star to Earth is the Sun. Many othe ..., in particular infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of Light, visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from ..., visible Visibility is in meteorology, a measure of the distance at which an object or light can be seen. Visibility may also ref ...
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Sunlight
Sunlight is a portion of the electromagnetic radiation In physics Physics is the natural science that studies matter, its Elementary particle, fundamental constituents, its Motion (physics), motion and behavior through Spacetime, space and time, and the related entities of energy and force. ... given off by the Sun The Sun is the star A star is an astronomical object consisting of a luminous spheroid of plasma (physics), plasma held together by its own gravity. The List of nearest stars and brown dwarfs, nearest star to Earth is the Sun. Many othe ..., in particular infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of Light, visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from ..., visible Visibility is in meteorology, a measure of the distance at which an object or light can be seen. Visibility may also ref ...
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Moonlight
Moonlight consists of mostly sunlight (with little earthlight (astronomy), earthlight) reflected from the parts of the Moon, Moon's surface where the Sun, Sun's light strikes. Illumination The intensity of moonlight varies greatly depending on the lunar phase, but even the full moon, full Moon typically provides only about 0.05–0.1 lux illumination. When a full Moon around apsis, perigee (a "supermoon") is viewed around upper culmination from the tropics, the illuminance can reach up to 0.32 lux. From Earth, the apparent magnitude of the full Moon is only about that of the Sun. The color of moonlight, particularly around full moon, appears bluish to the human eye compared to most artificial light sources due to the Purkinje effect. The Moon's bond albedo is 0.12, meaning only 12% of incident sunlight is reflected from the lunar surface. Moonlight takes approximately 1.26 seconds to reach Earth's surface. light scattering by particles, Scattered in atmosphere of Ear ...
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Moonlight
Moonlight consists of mostly sunlight (with little earthlight (astronomy), earthlight) reflected from the parts of the Moon, Moon's surface where the Sun, Sun's light strikes. Illumination The intensity of moonlight varies greatly depending on the lunar phase, but even the full moon, full Moon typically provides only about 0.05–0.1 lux illumination. When a full Moon around apsis, perigee (a "supermoon") is viewed around upper culmination from the tropics, the illuminance can reach up to 0.32 lux. From Earth, the apparent magnitude of the full Moon is only about that of the Sun. The color of moonlight, particularly around full moon, appears bluish to the human eye compared to most artificial light sources due to the Purkinje effect. The Moon's bond albedo is 0.12, meaning only 12% of incident sunlight is reflected from the lunar surface. Moonlight takes approximately 1.26 seconds to reach Earth's surface. light scattering by particles, Scattered in atmosphere of Ear ...
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Diffuse Sky Radiation
Diffuse sky radiation is solar radiation Solar irradiance is the power Power typically refers to: * Power (physics) In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one j ... reaching the Earth Earth is the third planet from the Sun and the only astronomical object known to harbour and support life. 29.2% of Earth's surface is land consisting of continents and islands. The remaining 70.8% is Water distribution on Earth, covered wi ...'s surface after having been scattered from the direct solar beam by molecule A molecule is an electrically Electricity is the set of physical phenomena associated with the presence and motion Image:Leaving Yongsan Station.jpg, 300px, Motion involves a change in position In physics, motion is the phenomenon ...s or particulates Particulates – also known as atmospheric aerosol particles, atmosp ...
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Shade (shadow)
Shade is the blocking of sunlight (in particular direct sunshine) by any object, and also the shadow created by that object. Shade also consists of the colors grey, black, white, etc. It may refer to blocking of sunlight by a roof, a tree, an Umbrella, umbrella, a window blind, window shade or blind, curtains, or other objects. As a resource In temperate and tropical zones (most places on Earth), shade is an important issue in providing cooling and shelter from heatstroke, harmful heat and ultraviolet emitted by the Sun. Plants Green plants produce shade by absorbing sunlight to invest as energy in photosynthesis to produce carbohydrate, sugar. They also actively transpiration, transpire, producing an additional cooling effect. In gardening terms, there are various types of shade: *Full sun – more than five hours of direct sun per day. *Part shade – two to five hours of direct sun, or all-day ' (sunlight shining through open trees). *Full shade – less than two hours of ...
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Solar System
The Solar SystemCapitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Solar System" and "solar system" structures in theinaming guidelines document The name is commonly rendered in lower case ("solar system"), as, for example, in the ''Oxford English Dictionary'' an''Merriam-Webster's 11th Collegiate Dictionary'' is the gravity, gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly.The natural satellites (moons) orbiting the Solar System's Sun's planets, planets are an example of the latter. Of the objects that orbit the Sun directly, the largest are the List of gravitationally rounded objects of the Solar System#Planets, eight planets,Historically, several other bodies were once considered planets, including, from its discovery in 1930 until 2006, Pluto. See Former ...
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Airglow
Airglow (also called nightglow) is a faint emission of light by a planetary atmosphere An atmosphere (from the greek words ἀτμός ''(atmos)'', meaning 'vapour', and σφαῖρα ''(sphaira)'', meaning 'ball' or 'sphere') is a layer or a set of layers of gases surrounding a planet or other material body, that is held in .... In the case of Earth's atmosphere The atmosphere of Earth is the layer of gas Gas is one of the four fundamental states of matter (the others being solid Solid is one of the four fundamental states of matter (the others being liquid, gas and plasma). The mo ..., this optical phenomenon Optical phenomena are any observable events that result from the interaction of light Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that can be visual perception, perceived by the human ... causes the night sky The term night sky, usually associated with astronomy from ...
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Starlight
Starlight is the light Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that is visual perception, perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nan ... emitted by stars A star is an astronomical object consisting of a luminous spheroid of plasma held together by its own gravity. The nearest star to Earth Earth is the third planet from the Sun and the only astronomical object known to harbor life. .... It typically refers to visible Visibility is in meteorology, a measure of the distance at which an object or light can be seen. Visibility may also refer to: * Visual perception ** Naked-eye visibility * A measure of turbidity in water quality control * Interferometric visibili ... electromagnetic radiation In physics Physics is the natural science that studies matter, its Elementary particle, fundamental constituents, its Motio ...
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