A typical sunrise, in New Zealand

A sunrise through clouds over Oakland, California.

A GIF video of the rising sun

The Sun rising, seen from orbit.

The terminator in April. As the terminator moves westward across the globe, sunrise occurs to the northeast, and sunset to the northwest, except for a thin region near the poles that do not experience sunrise/sunset at all (midnight sun, polar night).

Sunrise, is the time at which the first part of the Sun appears above the horizon in the east. Sunrise should not be confused with dawn, which is the (variously defined) point at which the sky begins to lighten, some time before the sun itself appears, ending twilight. Because atmospheric refraction causes the sun to be seen while it is still below the horizon, both sunrise and sunset are, from one point of view, optical illusions. The sun also appears larger on the horizon, but this is another optical illusion, similar to the moon illusion. ImageMetadata File history File links Download high resolution version (901x542, 91 KB) Photo taken by Moriori seconds before sunrise for Wikipedia . ... ImageMetadata File history File links Download high resolution version (901x542, 91 KB) Photo taken by Moriori seconds before sunrise for Wikipedia . ... Image File history File links Metadata Size of this preview: 800 × 600 pixelsFull resolution (2592 × 1944 pixel, file size: 364 KB, MIME type: image/jpeg) Uploading image made by Daniel Olsen. ... Image File history File links Metadata Size of this preview: 800 × 600 pixelsFull resolution (2592 × 1944 pixel, file size: 364 KB, MIME type: image/jpeg) Uploading image made by Daniel Olsen. ... Cumulus mediocris clouds, as seen from a plane window. ... Oakland is the name of several places in the United States of America: Oakland, Alabama Oakland, California (The best-known city with this name) Oakland, Florida Oakland, Maine Oakland, Maryland Oakland, Michigan Oakland, Missouri Oakland, Nebraska Oakland, New Jersey Oakland, Oklahoma Oakland, Oregon Oakland, Pennsylvania Oakland, Rhode Island Oakland, Tennessee... Official language(s) English Capital Sacramento Largest city Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ... Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Image File history File links Download high-resolution version (2980x1968, 1299 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Horizon Sunrise STS-113 ... Image File history File links Download high-resolution version (2980x1968, 1299 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Horizon Sunrise STS-113 ... Image File history File links Download high resolution version (982x562, 871 KB) World map showing daylight around 13:00 UTC, April 2nd. ... Image File history File links Download high resolution version (982x562, 871 KB) World map showing daylight around 13:00 UTC, April 2nd. ... World map with terminator (April) A composite image showing the terminator dividing night from day, running across Europe and Africa. ... The midnight sun at Nordkapp, Norway. ... The polar night is the night lasting more than 24 hours, usually inside the polar circles. ... A pocket watch, a device used to tell time Look up time in Wiktionary, the free dictionary. ... The Sun (Latin: Sol) is the star at the center of the Solar System. ... Horizon. ... The Experimental Advanced Superconducting Tokamak (EAST, internally called HT-7U) is a project being undertaken to construct an experimental superconducting tokamak magnetic fusion energy reactor in Hefei, the capital city of Anhui Province, in eastern China. ... Dawn in Peng Chau, Hong Kong. ... A typical daytime sky. ... Twilight in Denmark, just after sunset Twilight in the midwestern US featuring Venus as a brilliant evening star and the crescent moon Finland - Lapland at midnight in July Twilight in Acapulco with Long time Exposure Early twilight in California, before sunset Twilight is the time before sunrise or after sunset... Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of altitude. ... It has been suggested that this article or section be merged with illusion. ... The Moon illusion is an optical illusion in which the Moon appears larger near the horizon than it does while higher up in the sky. ...

The apparent westward revolution of Sun around the earth after rising out of the horizon is due to the Earth's eastward rotation. This illusion is so convincing that most cultures had mythologies and religions built around the geocentric model. This same effect can be seen with near-polar satellites as well. A compass rose with west highlighted This article refers to the cardinal direction; for other uses see West (disambiguation). ... This article is about Earth as a planet. ... “Geocentric” redirects here. ... A geographical pole is either of two fixed points on the surface of a spinning body or planet, at 90 degrees from the equator, based on the axis around which a body spins. ... An Earth observation satellite, ERS 2 For other uses, see Satellite (disambiguation). ...

As sunrise and sunset are calculated from the leading and trailing edges of the Sun, and not the center; this slightly increases the duration of "day" relative to "night." The sunrise equation, however, is based on the center of the sun. A composite image showing the terminator dividing night from day, running across Europe and Africa. ... Look up daylight in Wiktionary, the free dictionary. ... Melbourne skyline at night Night or nighttime is the period in which the sun is below the horizon. ... The sunrise equation as follows can be used to derive the time of sunrise and sunset for any solar declination and latitude in terms of local solar time when sunrise and sunset actually occur: cos(ωo) = -tan(φ)×tan(δ) where ωo is the hour angle in degree at either sunrise (when... The Sun (Latin: Sol) is the star at the center of the Solar System. ...

In the Northern Hemisphere, the latest sunrise does not occur on the winter solstice around December 21, but rather in early January. Likewise, the earliest sunrise is not on the summer solstice around June 21, but occurs earlier in June in the Northern Hemisphere. As one travels further from the equator, the times of sunrise and sunset change throughout the year. Even on the equator, sunrise and sunset shift several minutes back and forth through the year, along with solar noon. These effect are plotted using an analemma. The Northern Hemisphere is the half of a planets surface (or celestial sphere) that is north of the equator (the word hemisphere literally means half ball). On the Earth, the Northern Hemisphere contains most of the land and about 90% of the human population. ... Winter is one of the four seasons of temperate zones. ... -1... December 21 is the 355th day of the year (356th in leap years) in the Gregorian calendar. ... For other uses, see Summer (disambiguation). ... is the 172nd day of the year (173rd in leap years) in the Gregorian calendar. ... World map showing the equator in red In tourist areas, the equator is often marked on the sides of roads The equator marked as it crosses Ilhéu das Rolas, in São Tomé and Príncipe. ... Noon is the time exactly halfway through the day, written 12:00 in the 24-hour clock and 12:00 pm in the 12-hour clock. ... The analemma photographed, looking east in the northern hemisphere. ...

Due to Earth's axial tilt, whenever and wherever sunrise occurs, it is always in the northeast quadrant from the March equinox to the September equinox and in the southeast quadrant from the September equinox to the March equinox.

The colors of the sky, throughout the day and at sunrise and sunset, are explained by the phenomena of both Rayleigh Scattering and Mie Scattering. The red hues of the sky at sunset and sunrise are caused by Mie Scattering, not Rayleigh Scattering. The hues of blue, violet, and green in the sky are due to Rayleigh Scattering. Rayleigh Scattering is scattering of shorter wavelength light, (e.g. blue & violet), by air atoms and molecules, (not statistical variations in density of the Earth's atmosphere). The magnitude or strength of Rayleigh Scattering varies by the reciprocal of the wavelength raised to the fourth power, and hence, does not explain the beautiful variations of reds, purples, oranges, and peachy colors. The latter colors arise from Mie Scattering, low angle scattering of light off of dust, soot, smoke, and ash particles. Mie Scattering, (producing the colors of sunset and sunrise), is beautifully recognizable down-wind of and after dust storms, forest fires, and volcanic eruptions that inject large quantities of fine particulate matter into the atmosphere. A number of eruptions in recent times, such as those of Mount Pinatubo in 1991 and Krakatoa in 1883, have been sufficiently large to produce remarkable sunsets and sunrises all over the world. Sometimes just before sunrise or after sunset a green flash can be seen. Color is an important part of the visual arts. ... Rayleigh scattering causing the blue hue of the sky and the reddening at sunset Rayleigh scattering (named after Lord Rayleigh) is the scattering of light, or other electromagnetic radiation, by particles much smaller than the wavelength of the light. ... Mie theory, also called Lorenz-Mie theory or Lorenz-Mie-Debye theory, is a complete analytical solution of Maxwells equations for the scattering of electromagnetic radiation by spherical particles (also called Mie scattering). ... Red is any of a number of similar colors evoked by light consisting predominantly of the longest wavelengths of light discernible by the human eye, in the wavelength range of roughly 625–750 nm. ... An image with the hues cyclically shifted The hues in the image of this Painted Bunting are cyclically rotated with time. ... The term blue may refer to any of a number of similar colours. ... Violet (named after the flower violet) is used in two senses: first, referring to the color of light at the short-wavelength end of the visible spectrum, approximately 380–420 nanometres (this is a spectral color). ... Leafy green fountain in Wattens, Austria. ... The wavelength is the distance between repeating units of a wave pattern. ... This article does not cite any references or sources. ... Look up air in Wiktionary, the free dictionary. ... Properties In chemistry and physics, an atom (Greek ἄτομος or átomos meaning indivisible) is the smallest particle still characterizing a chemical element. ... In science, a molecule is a group of atoms in a definite arrangement held together by chemical bonds. ... In physics, density is mass m per unit volume V. For the common case of a homogeneous substance, it is expressed as: where, in SI units: ρ (rho) is the density of the substance, measured in kg·m-3 m is the mass of the substance, measured in kg V is... Layers of Atmosphere - not to scale (NOAA)[3] Earths atmosphere is a layer of gases surrounding the planet Earth and retained by the Earths gravity. ... The reciprocal function: y = 1/x. ... Exponentiation is a mathematical operation, written an, involving two numbers, the base a and the exponent n. ... This article does not cite any references or sources. ... Not to be confused with Violet (color). ... The orange, a fruit from which the modern name of the orange colour comes. ... Peach is a pinkish orange color. ... An angle is the figure formed by two rays sharing a common endpoint, called the vertex of the angle. ... Look up dust in Wiktionary, the free dictionary. ... Soot, also called lampblack, Pigment Black 7, carbon black or black carbon, is a dark powdery deposit of unburned fuel residues, usually composed mainly of amorphous carbon, that accumulates in chimneys, automobile mufflers and other surfaces exposed to smoke—especially from the combustion of carbon-rich organic fuels in the... Smoke from a wildfire Smoke is the airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass. ... Ash plume from Mt Cleveland, a stratovolcano Diamond Head, a well-known backdrop to Waikiki in Hawaii, is an ash cone that solidified into tuff Volcanic ash consists of very fine rock and mineral particles less than 2 mm in diameter that are ejected from a volcanic vent. ... A particle is Look up Particle in Wiktionary, the free dictionary In particle physics, a basic unit of matter or energy. ... This article or section does not cite any references or sources. ... A shelf cloud associated with a heavy or severe thunderstorm over Enschede, Netherlands A storm is any disturbed state of an astronomical bodys atmosphere, especially affecting its surface, and strongly implying severe weather. ... Fire in San Bernardino, California Mountains (image taken from the International Space Station) A wildfire, also known as a forest fire, vegetation fire, grass fire, or bushfire (in Australasia), is an uncontrolled fire in wildland often caused by lightning; other common causes are human carelessness and arson. ... This article is about volcanoes in geology. ... View of Jupiters active atmosphere, including the Great Red Spot. ... Mount Pinatubo is an active stratovolcano located on the island of Luzon in the Philippines, at the intersection of the borders of the provinces of Zambales, Tarlac, and Pampanga. ... Krakatoa or Krakatau or Krakatao is a volcanic island in the Sunda Strait between Java and Sumatra in Indonesia. ... Antarctica Oceania Africa Asia Europe North America South America Middle East Caribbean Central Asia East Asia North Asia South Asia Southeast Asia SW. Asia Australasia Melanesia Micronesia Polynesia Central America Latin America Northern America Americas C. Africa E. Africa N. Africa Southern Africa W. Africa C. Europe E. Europe N... Green flashes and green rays are rare optical phenomena that occur shortly after sunset or before sunrise, when a green spot is visible for a short period of time above the sun, or a green ray shoots up from the sunset point. ...

Gallery

Sunrise over the Mississippi River in Muscatine Image File history File linksMetadata Henry_Sunrise_Muscatine. ... Muscatine is a city located in Muscatine County, Iowa. ...	yellowish hue of the sun rising over Verde Island Image File history File links Metadata Size of this preview: 800 × 595 pixelsFull resolution (1271 × 945 pixel, file size: 297 KB, MIME type: image/jpeg) Authors own picture. ... Verde Island sits in the Verde Island Passage near Calapan, Mindoro and Batangas, Luzon in The Philippines. ...	Sunrise over a dune in Morocco Image File history File links No higher resolution available. ... A diagram showing the formation of a dune with a slipface. ...	Sunset in the T4-Barajas airport from Madrid Image File history File links Metadata Size of this preview: 800 × 600 pixelsFull resolution (1600 × 1200 pixel, file size: 261 KB, MIME type: image/jpeg) Español: Terminal 4 del aeropuerto de Barajas el día 20-03-07 sobre las 6 de la mañana, el sol amaneciendo. ... ... Motto: (Spanish for From Madrid to Heaven) Location Coordinates: , Country Spain Autonomous Community Comunidad Autónoma de Madrid Province Madrid Administrative Divisions 21 Neighborhoods 127 Founded 9th century Government  - Mayor Alberto Ruiz-Gallardón Jimémez (PP) Area  - Land 607 km² (234. ...
Sunrise over Greater Los Angeles Image File history File links Metadata Size of this preview: 800 × 480 pixelsFull resolution (2928 × 1757 pixel, file size: 285 KB, MIME type: image/jpeg) Sunrise over San Gabriel Valley in Greater Los Angeles on a hazy day. ... The Greater Los Angeles Area is the suburban area around the city of Los Angeles, California. ...	Sunrise in Kona, Hawaii Image File history File links Metadata Size of this preview: 800 × 533 pixelsFull resolution (3072 × 2048 pixel, file size: 2. ... Official language(s) English, Hawaiian Capital Honolulu Largest city Honolulu Area  Ranked 43rd  - Total 10,931 sq mi (29,311 km²)  - Width n/a miles (n/a km)  - Length 1,522 miles (2,450 km)  - % water 41. ...	Sunrise in the summer, Romania Image File history File links No higher resolution available. ...	Sunrise in the summer, Romania Image File history File links No higher resolution available. ...
Sunrise in the summer, Romania Image File history File links No higher resolution available. ...	Glowing clouds in Great Sacandaga Lake Image File history File links Metadata Size of this preview: 505 × 599 pixelsFull resolution (2112 × 2505 pixel, file size: 237 KB, MIME type: image/jpeg) A sun rise somewhere in PA I, the copyright holder of this work, hereby release it into the public domain. ... This article is about clouds in meteorology. ... Great Sacandaga Lake ( formerly the Sacandaga Reservoir) is a large lake situated in the Adirondack State Park in northern New York in the USA. The lake has a surface area of about 42. ...

See also

• Sunrise equation
• Sunset
• Twilight
• Sunsight
• Day
• Daybreak
• Day length

The sunrise equation as follows can be used to derive the time of sunrise and sunset for any solar declination and latitude in terms of local solar time when sunrise and sunset actually occur: cos(ωo) = -tan(φ)×tan(δ) where ωo is the hour angle in degree at either sunrise (when... A composite image showing the terminator dividing night from day, running across Europe and Africa. ... Twilight in Denmark, just after sunset Twilight in the midwestern US featuring Venus as a brilliant evening star and the crescent moon Finland - Lapland at midnight in July Twilight in Acapulco with Long time Exposure Early twilight in California, before sunset Twilight is the time before sunrise or after sunset... Richard Buckminster Bucky Fuller (July 12, 1895 - July 1, 1983) was an American visionary, designer, architect, inventor, and writer. ... Look up day in Wiktionary, the free dictionary. ... Surat Al-Falaq (Dawn, Daybreak) is the 113th Sura of the Quran. ... Day length as a function of latitude and Julian day. ...

External links

Wikimedia Commons has media related to:

Sunrise

• Sunrise and sunset calculator
• Customized Sunset, Sunrise Calculator calendar
• Sun or Moon Rise/Set Table for one Year
• US Navy Sunrise and Sunset calculator
• Full physical explanation of sky color, in simple terms
• An Excel workbook with VBA functions for sunrise, sunset, solar noon, twilight (dawn and dusk), and solar position (azimuth and elevation); by Greg Pelletier, translated from NOAA's online calculators for solar position and sunrise/sunset
• sun.exnatura.org Online sunrise/-set calendar with interactive location finder
• Formulas to calculate sunrise and sunset
• Provides sunrise/sunset times for location specified by Google Maps
• Daily almanac including Sun rise/set/twillight for every location on Earth
• Monthly calendar with Sun/Moon rise/set times for every location on Earth