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What is the outermost portion of the solar atmosphere called?
The outermost portion of the solar atmosphere is called the corona. It is a region of very hot and tenuous plasma that can be seen during a total solar eclipse as a white halo surrounding the Sun.
Does Gravity pull on gases and if so why and how?
Gravity affects all things, energy and matter. A gas is one of the 4 forms of matter, so it is affected by gravity. Gravity is the attraction of 2 masses that is a force pulling them together. A gas of the same volume as a solid will generally have less pull on a solid than the solid has on the gas, but they both have pull. Because the molecular bonds in a gas are weaker than that of a solid, molecules at the far side of a gas are less likely to follow the molecules closer to the solid as they would in a solid: in absolute space, gravity would tend to draw the gas into a graduated band as you get farther and farther from the solid.Gravity does not have an attracting, holding or condensing effect over gas and plays no part in holding down earth's atmosphere. There are no examples of gravity holding gas in a natural enviorenment and there are no experaments to prove gravity can attract, condense or hold gas. Earths atmosphere is surrounded by hydrogen a gas lighter then earths oxyigen and nitrogen atmosphere. Nitrogen and oxygen gas have an atomic weight heavier than hydrogen and cannot pass through the (hydrogen) lighter gas. Earth's atmosphere is held to earth in the same way the 90% hydrogen that occupies our solar system is held at the heliopause by a gas with a lighter atomic weight than hydrogen. This gas "X" is surrounding our heliosphere and keeping the hydrogen and hevier gases from expanding into interstellar space.Read more: Discuss:Does_Gravity_pull_on_gases_and_if_so_why_and_how
How far is it from the earth to reach outside of the earth's atmosphere?
According to Newtonian mechanics, gravitational fields are infinite in extent, so in fact you could never get away at all. Gravitational field strength is given by: g = MG/r2 Only if r (the distance) is infinite can the field strength equal zero. Surprisingly though, it is possible to have a finite speedwhich is sufficient to keep moving away from earth - in theory - forever, to an unlimited distance. This is the escape velocity. By calculus, one can prove that the amount of kinetic energy required to move an infinite distance from the earth (from an initial distance r) is: 1/2mv2 = mMG/r and hence v = sqrt(2MG/r) [N.B. 'M' is the mass of the earth, 'm' the mass of the object subject to Earth's gravitational pull, and 'G' the gravitational constant.] Even so, you would need eternity to travel an infinite distance.
What is a heliosphere?
a heliosphere is a bubble around the solar system blown by the the solar wind.
Which is further sedna or heliosphere?
The heliosphere starts right here (or, you might say, at the Sun). Sedna is much further out. However, the heliosphere extends far out beyond Pluto. So the outer boundary of the heliosphere can be beyond Sedna. Sedna has an orbit that is very "eccentric" (highly elliptical). It's distance from the Sun varies greatly as it orbits. So, whether Sedna is inside or outside of the heliosphere changes with time.
What is a bubble of space influenced by the sun called?
The bubble of space influenced by the sun is called the heliosphere. It is a region of space where the sun's influence dominates over the interstellar medium.
Words that start with the prefix helio?
Heliotrope, heliocentric, heliosphere...
Boundary point in space where the solar system ends?
The heliosphere boundary.
What do astronomers think forms the heliosphere?
The heliosphere is the area of space affected by the flow of charged particles being thrown off by the Sun. The solar corona, sometimes known as the Sun's "atmosphere", is the lowest and densest layer of the heliosphere, but the heliosphere and the "sloar wind" actually extends out beyond any of the planets. The Milky Way galaxy itself has an environment of charged particles; where this meets the heliosphere is the heliosheath or "termination shock" layer. Only two space probes, the two Voyager probes, have reached the termination shock, which may be an irregularly shaped area somewhere between 75 AU from the Sun and 90 AU out. We have very little firm data about that area.
Which company performs Heliosphere act with acrobatics and helium gas balloons?
see related link for information.
What is the name of the giant bubble of charged gas that surrounds the sun?
The giant bubble of charged gas that surrounds the sun is called the heliosphere. It is created by the solar wind, a stream of charged particles emanating from the sun. The heliosphere extends far beyond the furthest planets in our solar system.
What is a termination shock region?
The Shock Front, also known as the Termination Shock is the area of space that surrounds the sun at a distance of approximately 80 to 100 Astronomical Units at which the solar wind slows from supersonic to subsonic speeds. This boundary is contained within the heliosphere.
Does the heliopause mark the end of the suns gravitational grasp?
I believe the heliopause is the outer edge of the heliosphere and does mark the end of the sun's gravitational effect. However, scientists think the solar winds of the sun may continue beyond the heliosphere.
What are the dimensions of the solar system?
The size of the Solar System depends partly on what are considered to be its outermost reaches. There are three main candidates:the aphelion of the orbit of the farthest planet,the farthest observable object which orbits the sun,or the edge of the heliosphere.The furthest distance from the sun reached by the outermost planet, Neptune, is approx 4.5 billion kilometres and this would give the Solar System a diameter of 9.1 billion km. (This definition depends on Eris remaining a dwarf planet and not attaining planetary status.)The most distance observable object in the Solar System is Sedna. It is 143.7 billion km from the Sun, thus giving the Solar System a diameter of 287.5 billion km or approx 1922 AU.The heliosphere is the region within which the solar wind pushes against the interstellar medium, or where the Sun's gravity is stronger than that of other stars. The edge of the heliosphere, called the heliopause is reached at a distance of 90 AU giving the heliosphere a diameter of 180 AU.Incidentally, although at its aphelion, Sedna is outside the heliosphere, its orbit is very eccentric and brings it to 76 AU at its nearest approach to the sun - well within the heliosphere.
What is the name of the astrological area that the gravitational force of the sun stop?
Depends - it is uncertain where the boundary is, but one possible answer is the termination shock (heliosphere) after that the heliopause. [See related link]
