#galaxy #facts
Galaxies can range in size from a dwarf with as few as ten million stars to massive giant galaxies with a hundred trillion stars. Each star orbits its galaxies own centre of mass and it is estimated that there are more than 170 billion galaxies in the observable universe. Let’s dive in to explore many more galaxy facts!
Galaxies are historically categorized by their apparent shape, of which there are three:
Spiral galaxies are disk-shaped with dusty, curving arms.
Irregular galaxies have an unusual or irregular shape.
An elliptical galaxy, has an ellipse-shaped light profile.
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