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Astronomy question: How big is the Milky Way Galaxy? The stellar disk of the Milky Way galaxy is approximately 100,000 light years in diameter. It's stellar disk is estimated to be 1,000 light years in ... How big milky way? How big is galaxy? What is milky glaxy? Is the big Milky Way? Milky way galaxy size? How big is...
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wiki.answers.com/Q/How_big_is_the_Milky_Way_Galaxy
wiki.answers.com/Q/How_big_is_the_Milky_Way_Galaxy
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If this equals 100,000 light years as the diameter of the Milky Way, the Andromeda Galaxy is about 23 inches away, the Virgo Cluster of Galaxies is about 60 million light years or 600 inches away, and the nearest quasar, 3C273 is about 1.5 billion light years or 150,000 inches or a bit over 2 miles away.
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www.astronomycafe.net/qadir/q2139.html
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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...
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www.seds.org/messier/more/mw.html
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Do the sum The Solar system is about 10 light hours across (pluto is about 5 light hours away from the sun). 10 light hours is approximately 1000th of a light year (let's use nice round numbers) Therefore in the model, 1mm = 1000th light ye...
http://answers.yahoo.com/question/index?qid=20060905183...
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About 100,000 light years diameter and 1000 light years thick at the centre.
http://www.blurtit.com/q9001625.html
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Astrophysicists, like all scientists, always round their numbers. It's a natural thing to do when your measurements have limited accuracy; you need to ... Check out this lecture for information and pictures of the Milky Way. A Web search, or an introductory physics textbook, can teach you how to use "significant figures."
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www.madsci.org/posts/archives/oct2001/1004580831.As.r.h...
www.madsci.org/posts/archives/oct2001/1004580831.As.r.html
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Subject: How big is the Milky Way Galaxy REALLY? ... Light speed, I've learned, is more like 186,282 mps, not 186,000. One estimate I've heard about the size of the Milky Way is about 130,000 light years in diameter. How close is that to the truth?
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www.madsci.org/posts/archives/oct2001/1004580831.As.q.h...
www.madsci.org/posts/archives/oct2001/1004580831.As.q.html
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Now, a galaxy like our Milky Way has a diameter of about 90,000 light years, so the ratio of these two collections of matter is 15 billion/90,000 = 167,000 to 1. ... This is about as big as some small dust particles! The visible universe's radius would be 167,000x150 meters = 25,000 kilometers from your model.
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www.astronomycafe.net/qadir/q706.html
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