What's the diameter of our Galaxy?

 The diameter of our galaxy, the Milky Way, is estimated to be about 100,000 to 120,000 light-years. This measurement is based on observations of the distribution and motion of stars, gas, and other astronomical objects within the Milky Way.


It's important to note that determining the exact size of a galaxy is challenging because much of the Milky Way's structure is obscured by interstellar dust, making direct measurements difficult. Instead, astronomers rely on various indirect methods, such as observing the rotation of the galaxy and the distribution of stars, to estimate its size.


The Milky Way is a barred spiral galaxy, meaning it has a central bar-shaped structure surrounded by spiral arms. It is just one of the billions of galaxies in the observable universe, and its vast size makes it a fascinating subject of study in the field of astronomy.

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