What is the approximate radius of the Sun in meters?
Radius of sun is 695 500 km, so in meters you multiply by 1000. The answer would be 695 500 000 m. Wiki User ∙ 2013-09-16 00:47:38
What is solar radius?
Solar radius is a unit of distance used to express the size of stars in astronomy relative to the Sun. The solar radius is usually defined as the radius to the layer in the Sun 's photosphere where the optical depth equals 2/3:
What is the mass of the Sun?
The mass of the sun is 1.989 x 10 30 kilograms, about 333,000 times the mass of the Earth. The sun contains 99.8 percent of the mass of the entire solar system, leading astronomers Imke de Pater and Jack J. Lissauer, authors of the textbook Planetary Sciences, to refer to the solar system as "the sun plus some debris".
What is the distance of the Sun from the Earth's Center?
One astronomical unit (about 150,000,000 km; 93,000,000 mi) is defined as the mean distance of the Sun's center to Earth's center, though the distance varies as Earth moves from perihelion in January to aphelion in July.
How long is the Sun's rotational period?
In a frame of reference defined by the stars, the rotational period is approximately 25.6 days at the equator and 33.5 days at the poles.
What type of star is the Sun?
The Sun is a G-type main-sequence star that comprises about 99.86% of the mass of the Solar System. The Sun has an absolute magnitude of +4.83, estimated to be brighter than about 85% of the stars in the Milky Way, most of which are red dwarfs. The Sun is a Population I, or heavy-element-rich, star. The formation of the Sun may have been triggered by shockwaves from one or more nearby supernovae. This is suggested by a high abundance of heavy elements in the Solar System, such as gold and uranium, relative to the abundances of these elements in so-called Population II, heavy-element-poor, stars. 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.
How much hydrogen is in the Sun's core?
The Sun's core fuses about 600 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 10,000 and 170,000 years to escape the core, is the source of the Sun's light and heat.
What is the meaning of the word "sol"?
In English, the Greek and Latin words occur in poetry as personifications of the Sun, Helios ( / ˈhiːliəs /) and Sol ( / ˈsɒl / ), while in science fiction Sol may be used as a name for the Sun to distinguish it from other stars. The term sol with a lower-case s is used by planetary astronomers for the duration of a solar day on another planet such as Mars.
How much of the Sun's mass is hydrogen?
Its mass is about 330,000 times that of Earth; it accounts for about 99.86% of the total mass of the Solar System. Roughly three quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen, carbon, neon and iron.
What is the Sun's energy?
The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as visible light and infrared radiation. It is by far the most important source of energy for life on Earth. Its diameter is about 1.39 million kilometres (864,000 miles), or 109 times that of Earth. Its mass is about 330,000 times that of Earth; it accounts for about 99.86% of the total mass of the Solar System. Roughly three quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen, carbon, neon and iron.
Where is the Trundholm Sun Chariot?
The sculpture is probably c. 1350 BC. It is displayed at the National Museum of Denmark.
How big is the Sun?
The sun has a huge (comparing the earth) radius of 695700 kilometres. This is about 109 times the diameter of Earth. The size of sun is so large that about 1,300,000 planet Earths can fit inside of it.
How many times larger is the Sun's radius than the Earth's?
This Radius of the Sun is almost 109 times larger than that of the Earth. The r of the Earth is... 6378 Kilometres. In other words both the dimensions are 1 : 109 rarios.
What is the average temperature of a surface?
The average surface temperature is about 9932 degree Fahrenheit or 6000 degree Celsius. In i
What is the line formed by the Earth and the Sun?
L1, L2, and L3 are all on a line formed by the Earth and the sun. We’ve put satellites at L1 and L2, but the problem with these Lagrange points is that t
What is the gravitational effect of the Sun and Earth?
At all five of these points, the gravitational effect of the sun and the Earth are such that they can hold a satellite in position. L1 is probably what you were thinking about when you asked the question.
How long is the rotation period?
Period of rotation in earth days... 25 days 6 hours.
What is the Sun made of?
It is about 74 % hydrogen and 25 % helium with traces of Iron, carbon, calcium and sodium which are also found in the planet Earth and in our bodies.
How big is the Sun?
The sun is nearly a perfect sphere. Its equatorial diameter and its polar diameter differ by only 6.2 miles (10 km). The mean radius of the sun is 432,450 miles (696,000 kilometers), which makes its diameter about 864,938 miles (1.392 million km).
How many Earths can fit in the Sun?
About 1.3 million Earths could fit inside the sun. The mass of the sun is 1.989 x 10 30 kilograms, about 333,000 times the mass of the Earth. The sun contains 99.8 percent of the mass of the entire solar system, leading astronomers Imke de Pater and Jack J. Lissauer, authors of the textbook " Planetary Sciences ," to refer to ...
How much weight does the Sun lose to the solar wind?
According to ”Bad Astronomer” Phil Plait, the sun loses an average 1.5 million tons of material every second to the solar wind.
What is the largest object in the solar system?
The sun is the largest and the most massive object in the solar system, but it is just a medium-sized star among the hundreds of billions of stars in the Milky Way galaxy. This image from the Solar Dynamics Observatory (SDO) shows the sun at 12:45 PM EDT on July 12, 2012 during an X1.4 class flare. The image is captured in ...
How much material has the Sun lost?
Altogether, Plait estimated that the sun has lost a total of 10 24 tons of material over its 4.5-billion-year lifetime, or more than 100 times the mass of the Earth. While that sounds like a lot, it's only about 0.05 percent of the star's total mass. This artist’s illustration compares the sizes of the sun and a red giant star.
What happens to the sun when it puffs up?
The sun will puff up into a red giant and expand past the orbit of the inner planets, including Earth. The sun's helium will get hot enough to burn into carbon, and the carbon will combine with the helium to form oxygen. These elements will collect in the center of the sun.
What happens to the Sun's outer layers?
Later, the sun will shed its outer layers, forming a planetary nebula and leaving behind a dead core of mostly carbon and oxygen — a very dense and hot white dwarf star, about the size of the Earth. While the sun is typical in most respects, it does have one quality that stands out from the majority of stars — it is a loner.
How many miles is the radius of the Sun?
The result was a measured radius of 696,342 ± 65 kilometres (432,687 ± 40 miles).
What is the solar radius?
Solar radius is a unit of distance used to express the size of stars in astronomy relative to the Sun. The solar radius is usually defined as the radius to the layer in the Sun 's photosphere where the optical depth equals 2/3 : 1 R ⊙ = 6.957 × 10 5 km {displaystyle 1,R_ {odot }=6.957times 10^ {5} {hbox { km}}}.
How many miles is the solar photosphere?
Haberreiter, Schmutz & Kosovichev (2008) determined the radius corresponding to the solar photosphere to be 695,660 ± 140 kilometres (432,263 ± 87 miles). This new value is consistent with helioseismic estimates; the same study showed that previous estimates using inflection point methods had been overestimated by approximately 300 km (190 mi).
Overview
Structure and fusion
The structure of the Sun contains the following layers:
Core – the innermost 20–25% of the Sun's radius, where temperature and pressure are sufficient for nuclear fusion to occur. Hydrogen fuses into helium (which cannot itself be fused at this point in the Sun's life). The fusion process releases energy, and the core gradually becomes enriched in helium. Radiative zone – Convection cannot occur until much nearer to the surface of the Sun. T…
Name and etymology
The English word sun developed from Old English sunne. Cognates appear in other Germanic languages, including West Frisian sinne, Dutch zon, Low German Sünn, Standard German Sonne, Bavarian Sunna, Old Norse sunna, and Gothic sunnō. All these words stem from Proto-Germanic *sunnōn. This is ultimately related to the word for sun in other branches of the Indo-European language family, though in most cases a nominative stem with an l is found, rather than the genit…
General characteristics
The Sun is a G-type main-sequence star that constitutes about 99.86% of the mass of the Solar System. The Sun has an absolute magnitude of +4.83, estimated to be brighter than about 85% of the stars in the Milky Way, most of which are red dwarfs. The Sun is a Population I, or heavy-element-rich, star. The formation of the Sun may have been triggered by shockwaves from one or more nearby supernovae. This is suggested by a high abundance of heavy elements in the Solar S…
Sunlight
The solar constant is the amount of power that the Sun deposits per unit area that is directly exposed to sunlight. The solar constant is equal to approximately 1,368 W/m (watts per square meter) at a distance of one astronomical unit (AU) from the Sun (that is, on or near Earth). Sunlight on the surface of Earth is attenuated by Earth's atmosphere, so that less power arrives at the surface (closer to 1,000 W/m ) in clear conditions when the Sun is near the zenith. Sunlight at th…
Composition
The Sun is composed primarily of the chemical elements hydrogen and helium. At this time in the Sun's life, they account for 74.9% and 23.8% of the mass of the Sun in the photosphere, respectively. All heavier elements, called metals in astronomy, account for less than 2% of the mass, with oxygen (roughly 1% of the Sun's mass), carbon (0.3%), neon (0.2%), and iron (0.2%) being the most abundant.
Magnetic activity
The Sun has a magnetic field that varies across its surface. Its polar field is 1–2 gauss (0.0001–0.0002 T), whereas the field is typically 3,000 gauss (0.3 T) in features on the Sun called sunspots and 10–100 gauss (0.001–0.01 T) in solar prominences. The magnetic field varies in time and location. The quasi-periodic 11-year solar cycle is the most prominent variation in which the number and size of sunspots waxes and wanes.
Life phases
The Sun today is roughly halfway through the most stable part of its life. It has not changed dramatically for over four billion years and will remain fairly stable for more than five billion more. However, after hydrogen fusion in its core has stopped, the Sun will undergo dramatic changes, both internally and externally.
The Sun formed about 4.6 billion years ago from the collapse of part of a giant molecular cloud t…