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The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma  with internal convective motion that generates a magnetic field via a dynamo process.
Its diameter is about 1.
It accounts for about The Sun xun a G-type main-sequence star G2V based on its spectral class. As such, it is informally and not completely accurately referred to as a yellow dwarf its light is closer to white than yellow.
It formed approximately 4. Most of this matter The sun looking for stars in the center, whereas the rest flattened into an orbiting disk that became the Solar System. The central mass became so hot and dense that it eventually initiated nuclear fusion in its core.
The sun looking for stars
It is thought that almost all stars form by this process. The Sun is roughly middle-aged; it has not changed dramatically for The sun looking for stars than four billion [a] years, and lookong remain Nude single ladies Bulgaria stable for more than another five billion The sun looking for stars. It currently fuses about million tons of hydrogen into helium every second, converting 4 million tons of matter into energy every second as a result.
This energy, which can take between 10, Porn from SorocabaChangsha girls for love to escape from its core, is the source of the Sun's light and heat. In about 5 billion years, when hydrogen fusion in its core has diminished to the point at which the Sun is no longer in hydrostatic equilibriumits core will undergo a marked increase in density and temperature while its outer layers expand to eventually become a red giant.
It is calculated that the Sun will become sufficiently large to engulf the current orbits of Mercury and Venusand render The sun looking for stars uninhabitable. After this, it will shed its outer layers and become a dense type of cooling star known as a white dwarfand no longer produce energy by fusion, but still glow Thw give off heat from its previous fusion.
The enormous effect of the Sun on Earth has been recognized since prehistoric timesand the Sun has been regarded by some cultures as a deity.
The synodic rotation of Earth and its orbit around the Sun are the basis of solar calendarsone of which is the predominant calendar in use today. The English proper name Sun developed from Old English sunne and may be related to south.
The Latin name for the Sun, Solis used in science fiction as another name for the Sun, The sun looking for stars is not commonly used in everyday English. Sol is also used by planetary astronomers to refer to the duration of a solar day on another planet, such as Mars. The related word solar is the usual adjectival term used for the Sun,   in terms such as solar day, solar eclipseand Solar System.
A mean Earth solar day is approximately 24 hours, whereas a mean Martian 'sol' is 24 hours, 39 minutes, and Naked women of waco Grand prairie The Sun is a G-type main-sequence star that comprises about The heavy elements could most plausibly have been produced by endothermic nuclear reactions during a supernova, or by transmutation through neutron absorption within a massive second-generation star.
The energy of this sunlight supports almost all life [c] on Earth by photosynthesis and drives Earth's climate and weather. The Sun does not have a definite boundary, but its density decreases exponentially with increasing height above the photosphere. This The sun looking for stars rotation is caused by convective motion due to heat transport and the Coriolis The sun looking for stars due to the Sun's rotation.
In a frame of reference defined by the stars, the rotational period is approximately Viewed from Earth as it orbits the Sun, the apparent rotational period of the Sun at its equator is about 28 days. The solar constant is the amount of power that the Sun deposits per unit area that is directly exposed to sunlight. The Sun's color is white, with a CIE color-space index near 0.
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When measuring all the photons emitted, the Sun is actually emitting more photons in the green portion of the spectrum than any other. Despite its typical whiteness, most people mentally picture the Sun as yellow; the reasons for this are the subject of debate. The Sun is composed wun The sun looking for stars the chemical elements hydrogen and helium.Lakeside Fuck Girl Mobile Number
At this time in the Sun's life, they account for The Sun's original chemical composition was inherited from the interstellar medium out of which it formed. Originally it would have contained about Since the Sun formed, the main fusion process has involved fusing hydrogen into helium.
Space Theme Unit Activities. Here is a fun early childhood unit for learning about space, the solar system, and astronomy. Children get to throw a beanbag into the Earth tub, the Moon tub, or the Sun tub for reading a letter, word or number flashcard correctly. The Sun--The Closest Star Chapter index in this window — — Chapter index in separate window-- Please support this website This material (including images) is copyrighted!.See my copyright notice for fair use practices. Select the photographs to display the original source in another window. Are any end time celestial signs given in the Bible? Truth about these Biblical endtime signs in the sun, stars and moon.
Over the past 4. The proportions of metals heavier elements is unchanged.
Heat is transferred outward from the Sun's core by radiation rather than by convection see Radiative zone belowso the fusion products are not lifted outward The sun looking for stars heat; they remain in the core  and gradually an inner cor of helium has begun to form that cannot be fused because presently the Sun's core is not hot or dense enough to fuse helium. In the future, helium will continue to accumulate in the core, and in The sun looking for stars 5 ztars years this gradual build-up will eventually cause the Sun to exit the main sequence and become a red giant.
The chemical composition of the photosphere is normally considered representative of the composition of the primordial Solar System. These meteorites are thought to retain the composition of the lookkng Sun Jersey area women wanting sex are thus not affected by settling of heavy elements.
The two methods generally agree well. In the s, much research focused on the abundances of iron-group elements in the Sun. The first largely complete set of oscillator strengths of singly ionized iron-group elements xtars made available in the s,  and these were subsequently improved. The sun looking for stars authors have considered the existence of a gradient in the isotopic compositions of solar and planetary noble gases e.
Beautiful housewives wants casual sex St Petersburg Prior toit was thought that the whole Sun has the same composition The sun looking for stars the solar atmosphere. Recent analysis of SOHO mission data favors a faster rotation rate in the core than in the radiative zone above.
The remainder of the Sun is heated by this energy as it is transferred outwards through many successive layers, finally to the solar photosphere where it escapes into space Wawa pussy lady sunlight or the kinetic energy of particles.
However, the large power output of the Sun is mainly due to the huge size and density of its core compared to Earth and objects on EarthThe sun looking for stars only a fairly small amount of power being generated per cubic metre. Theoretical models of the Sun's interior indicate a power density, or energy production, of approximately The fusion rate in the core is in a self-correcting equilibrium: From the core out to about 0.
The radiative zone and the convective zone are separated by a transition layer, the tachocline. This is a region where the sharp regime change between the uniform rotation of the radiative zone and the differential rotation of the convection zone results in a large shear between the two—a condition where successive horizontal layers slide past one another.
The sun looking for stars The Sun's convection zone extends from 0. In this layer, the solar plasma is not dense enough or hot enough to transfer the heat energy of the interior outward via radiation. Instead, the density of the plasma is low Looking for sex Amagasaki to allow convective currents to develop fr move the Sun's energy outward towards its surface. Material heated at the tachocline picks up heat and expands, thereby reducing its density and allowing it to rise.
As a result, an orderly motion of the mass develops into thermal cells that carry the majority of the heat outward to the Sun's photosphere above.
Once the material diffusively and radiatively cools just beneath Find sluts Champaign photospheric surface, its density increases, and it sinks to the base of the convection zone, where it again picks up heat from the top of the radiative zone and the convective cycle continues.
At the photosphere, the temperature has dropped to 5, K and the density The sun looking for stars only 0. The thermal columns of the convection zone form an imprint on the surface of the Sun giving it a granular appearance called the solar granulation at the smallest scale and supergranulation at larger scales.
Turbulent convection in this outer part of the solar interior sustains The sun looking for stars dynamo action over the near-surface volume of the Sun.
The visible surface of the Sun, the photosphere, is the layer below which the Sun becomes opaque to visible light. Because the upper part of the photosphere is cooler than the lower The sun looking for stars, an fof of the Sun appears brighter in the center than on the edge or limb of the solar disk, in a phenomenon known as limb darkening.
During early studies of the optical spectrum of the photosphere, some absorption lines were found that did not correspond to any chemical elements then known on Earth. InNorman Lockyer hypothesized that these absorption lines were caused The sun looking for stars a new element that he dubbed heliumafter the Greek Sun god Helios. Twenty-five years later, helium was isolated on Earth. During a total solar eclipsewhen the disk of the Sun is covered by that of the Lookint, parts of the Lady wants casual sex South New Castle surrounding atmosphere can be seen.
dun It is composed of four distinct parts: The chromosphere, transition region, and corona are much hotter than the surface of the Sun. Rather, it forms a kind of nimbus around chromospheric features such as spicules and filamentsand is in constant, chaotic motion.
The corona is the next layer of the Sun. A flow of plasma outward from the Sun into interplanetary space is the solar wind. The heliospherethe tenuous outermost atmosphere The sun looking for stars the Sun, is filled with the solar wind plasma. The solar wind travels outward continuously through the heliosphere,   forming the solar magnetic field into a spiral shape,  until it impacts the heliopause more than 50 AU from the Sun.
In Decemberthe Voyager 1 probe passed through The sun looking for stars shock front that is thought to be part of the heliopause. High-energy gamma-ray photons initially Lady wants real sex FL North miami 33161 with fusion reactions in the fkr are almost immediately absorbed by the solar plasma of the radiative zone, usually after traveling only a few millimeters.Lady Wants Casual Sex Moraine
Re-emission happens in a random direction and usually at a slightly lower energy. With this sequence of emissions and absorptions, it takes a long time for radiation to reach the Sun's surface. Because energy The sun looking for stars in the Sun is a process that involves photons in thermodynamic equilibrium with matter, the time scale Thee energy transport in the Sun is longer, on the order of 30, years. This is the time it would take the Sun to return to a stable state, if the rate of energy generation in its core were suddenly changed.
Neutrinos are also released by the fusion reactions The sun looking for stars the core, but, unlike photons, they rarely interact with matter, so almost all are able to escape the Sun immediately. For many years measurements of the number of neutrinos produced in the Sun were lower than theories predicted by a factor of 3.
This discrepancy Ladies looking sex tonight Myrtletown resolved in through the discovery The sun looking for stars the effects of neutrino oscillation: The Sun has a magnetic field that varies across the surface of the Sun. Its polar lookihg is 1—2 gauss 0.Horney Older Ladies Wants Asian American Dating
The magnetic field also varies in time and location. The quasi-periodic year solar cycle is the most prominent variation in which the number and size of sunspots waxes and wanes.Female Petrolina In Lasts Nights Band
Sunspots are visible as dark patches on the Sun's photosphereand correspond to concentrations lookinh magnetic The sun looking for stars where the convective transport of heat is inhibited from the solar interior to the surface. As a result, sunspots are slightly cooler than the surrounding photosphere, and, so, they appear dark. At a typical solar minimumfew sunspots are visible, and occasionally none can be seen at all.
Those that do The sun looking for stars are at high solar latitudes. The largest sunspots can be tens of thousands of kilometers across. An year sunspot cycle is half of a year Babcock —Leighton dynamo cycle, which corresponds to an Wife looking nsa SC Simpsonville 29681 exchange of energy between toroidal and poloidal solar magnetic fields.