The estimated diameter of our Milky Way Galaxy is 26.8+-1.1 kiloparsecs (about 87,400+-3,600 light years).
However, near the spiral of the Milky Way Galaxy, the thickness ranges around 1,000 light years, making it significantly less in magnitude than its length. This value is also approximated because it differs based on the section considered.
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.
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.
The Tadpole Galaxy, also known as UGC 10214, has an estimated diameter of about 280,000 light-years. This translates to roughly 1.6 million trillion miles. The galaxy is notable for its long tidal tail, which is a result of gravitational interactions.
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.
According to a recent research, the spiral disk of stars in Andromeda is three times larger in diameter than previously estimated. This constitutes evidence that there is a vast, extended stellar disk that makes the galaxy more than 220,000 light-years (67,000 pc) in diameter. Previously, estimates of Andromeda's size ranged from 70,000 to 120,000 light-years (21,000 to 37,000 PC) across.
M31 diameter is 220,000ly, Milky Way diameter is 258,000ly, according to newest observations, we are almost 2x more massive
radius = diameter / 2 The thickness is irrelevant.
To calculate the outer diameter (OD) of a cylindrical object when you have the inner diameter (ID) and the thickness of the material, you can use the formula: OD = ID + 2 × Thickness. This accounts for the thickness on both sides of the cylinder. Simply add twice the thickness to the inner diameter to get the outer diameter.
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)