Milky Way

1. Its misrepresent. The milky modality is a disk astir(predicate) 120,000 mail years across (see the Guide to Space bind on the diameter of the opaque focal point for more than), with a of signifi mintce bulge that has a diameter of 12,000 light years. The disk is far from perfectly flat though, as can be seen in the picture below. What warped it? Two of the galaxys neighbors the orotund and Small Magellanic clouds have been pulling on the dark example in the whitish Way bid in a game of galactic tug-of-war. The tugging sets up a sort of h over frequency that pulls on the hydrogen gas (of which the milky Way has lots of). Heres a more in-depth term on Universe Today about How the Milky Way got its Warp. The warped Milky Way. Image credit:NASA/APOD The warped Milky Way. Image credit:NASA/APOD 2. It has a donut, but you cant directly see it. The Milky Way has a halo of dark case that makes up over 90% of its crapper. Yes, 90%. That means that all of what we can see (with the naked as a jaybird mettle or telescopes) makes up less than 10% of the mass of the Milky Way. Now, it doesnt have a halo alike those ancient cartoon characters that die, sprout wings and play a harp in the clouds.

The halo is actually invisible, though we enjoy it exists by running simulations of what the Milky Way would look like and how fast stars inside the galaxys disk force field the center. The heavier it is, the hot they should be orbiting. If you assume that the galaxy is make up precisely of exit that we can see, then you get a rotary motion rate for the stars that i s well below what it should be, so the rest ! is made up of what is elusively called dark matter, or matter that only interacts gravitationally (so far as we know) with normal matter. To see nearly images of the probable dark matter meanness distribution in our galaxy, check out The Via Lactea Project. 3. It has over cc billion stars As galaxies go, the Milky Way is a middleweight. The largest galaxy known, IC 1101, has over 100 trillion stars, and other large...If you emergency to get a full essay, order it on our website: OrderCustomPaper.com

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