Milky Way Galaxy
The large disk-shaped aggregation of stars, gas, and dust in which the solar system is located. The term “Milky Way” is used to refer to the diffuse band of light visible in the night sky emanating from the Milky Way Galaxy. Although the two terms are frequently used interchangeably, Milky Way Galaxy, or simply the Galaxy, refers to the physical object rather than its appearance in the night sky.
Structure and contents
The Milky Way Galaxy contains about 2 × 1011 solar masses of visible matter. Roughly 96% is in the form of stars, and about 4% is in the form of interstellar gas. The gas both inside the stars and in the interstellar medium is primarily hydrogen and helium with a small admixture of all of the heavier atoms. The mass of dust is about 1% of the interstellar gas mass and is an insignificant fraction of the total mass of the Galaxy. Its presence, however, limits the view from the Earth in the plane of the Galaxy to a small fraction of the Galaxy's diameter in most directions. See also Interstellar matter.
The Milky Way Galaxy contains four major structural subdivisions: the nucleus, the bulge, the disk, and the halo. The Sun is located in the disk about half way between the center and the indistinct outer edge of the disk of stars. The currently accepted value of the distance of the Sun from the galactic center is 8.5 kiloparsecs, although some measurements suggest that the distance may be as small as 7 kpc. See also Parsec.
The nucleus of the Milky Way is a region within a few tens of parsecs of the geometric center and is totally obscured at visible wavelengths. The nucleus is the source of very energetic activity detected by means of radio waves and infrared radiation.
2006-09-08 01:54:41
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answer #1
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answered by Anonymous
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Look down. You're standing on one of the bits of it. We're all on it at the edge of the Milky Way. Closest Galaxy is M31.I think. Whirling around in some super Galactic spin. It's in the Universe. It's spelled Milky Way Gallaxy. Not Gallexy. And it's not in the stratosphere. Like that other person wrote.
2006-09-07 23:48:12
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answer #2
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answered by sandwreckoner 4
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i imagine a more desirable proper thanks to state it is that the solar is area of the milky way it is rotating round it truly is center. it is the solar does no longer orbit the milky way a lot because the earth does no longer orbit the picture voltaic device. they're contained with those respectively. yet to respond to you first question, convinced the milky way has gravitational stress, keep in mind that each human being gadgets with mass exert some kind of gravitational stress. The milky way is a huge determination of stars, gasses and rocks all of which have mass including to the total gravitational field generated with the help of the milky way galaxy. As for the 2d question convinced, both the solar and the milky way rotate round their respective axis. the solar rotates very further to how planets rotate. The milky way is a diverse tale completely, yet sparing the boring information it does rotate besides. wish this allows, exhilaration
2016-11-25 20:24:47
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answer #3
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answered by wingert 4
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Our star, Sol, is one of about 100 billion stars in the Milky Way Galaxy. We are near the outer fringes, so we can see most of it up in the sky.
Our galaxy is one of 50--100 billion galaxies. The nearest big one is called Andromeda.
The universe is a very big place, which has been here a very long time. We with our cars and shopping malls, are like ants in an anthill.
2006-09-07 23:39:02
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answer #4
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answered by DinDjinn 7
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The Milky Way is the galaxy which is the home of our Solar System together with at least 200 billion other stars (more recent estimates have given numbers around 400 billion) and their planets, and thousands of clusters and nebulae, including at least almost all objects of Messier's catalog which are not galaxies on their own
2006-09-07 23:37:32
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answer #5
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answered by Iman S 2
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From Monty Python's 'Meaning of Life'
Just remember that you're standing on a planet that's evolving
And revolving at nine hundred miles an hour,
That's orbiting at nineteen miles a second, so it's reckoned,
A sun that is the source of all our power.
The sun and you and me and all the stars that we can see
Are moving at a million miles a day
In an outer spiral arm, at forty thousand miles an hour,
Of the galaxy we call the 'Milky Way'.
Our galaxy itself contains a hundred billion stars.
It's a hundred thousand light years side to side.
It bulges in the middle, sixteen thousand light years thick,
But out by us, it's just three thousand light years wide.
We're thirty thousand light years from galactic central point.
We go 'round every two hundred million years,
And our galaxy is only one of millions of billions
In this amazing and expanding universe.
The universe itself keeps on expanding and expanding
In all of the directions it can whizz
As fast as it can go, at the speed of light, you know,
Twelve million miles a minute, and that's the fastest speed there is.
So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth,
And pray that there's intelligent life somewhere up in space,
'Cause there's bugger all down here on Earth.
XDDD
2006-09-07 23:42:14
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answer #6
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answered by motardo_man 2
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This Galaxy is the Milky Way.
2006-09-07 23:35:20
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answer #7
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answered by Avner Eliyahu R 6
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The Milky Way galaxy is like a giant rotating spiral (pinwheel?) and our sun (and the earth) are far from its center. You can look toward the center which is in the direction of the constellation Sagittarius.
2006-09-08 01:12:14
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answer #8
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answered by Kes 7
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In context to this universe milky way is like in a corner of it.any how a galaxy is a group of millions of stars. Our galaxy i.e. the group of stars is the milky way.
2006-09-07 23:36:28
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answer #9
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answered by Ginna Y 2
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In a milk farm
Far, Far Away !
I like Milky Way and Galaxy , both !
2006-09-07 23:35:27
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answer #10
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answered by Anonymous
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