Our Galaxy The Milky Way is 100,000 light years across the largest section and is 1000 light years deep in thickness
The Milky Way galaxy is 100,000 light years across and 1,000 light years thick. But the really fun part is that the Milky Way is all around us. We are right inside the Milky Way; it is our home galaxy. The Milky Way is not far away from you. You are a part of it.
About 100,000 Light years in diameter and 20,000 Light years in thickness
In Jan 1987, John Cormedy of Dominion Astrophysical Observatory in Canada discovers the balck hole in Galaxy Andromeda and estimated that the diameter of black hole in Andromeda Galaxy is 10 million times as massive as the Sun.
Consider going across the width of the pipe: Outer diameter = Thickness + Inner diameter + Thickness so 2*Thickness = Outer diameter - Inner diameter = 2.5 - 2.1 = 0.4 inches and therefore, Thickness = 0.2 inches.
The stellar disk of the Milky Way galaxy is approximately 100,000 light years in diameter and about 10,000 light years in thickness.
radius = diameter / 2 The thickness is irrelevant.
Mass similar to our own Milky Way; about a trillion stars; diameter estimated at 140,000 light-years.Mass similar to our own Milky Way; about a trillion stars; diameter estimated at 140,000 light-years.Mass similar to our own Milky Way; about a trillion stars; diameter estimated at 140,000 light-years.Mass similar to our own Milky Way; about a trillion stars; diameter estimated at 140,000 light-years.
M31 diameter is 220,000ly, Milky Way diameter is 258,000ly, according to newest observations, we are almost 2x more massive
take the outside diameter and subtract the thickness twice.
take the outside diameter and subtract the thickness twice.
take the outside diameter and subtract the thickness twice.
External diameter minus internal diameter will get you the difference and then you have to divide by two to get the wall thickness. (as the difference in diameter accounts for both sides of the cylinder)