Our Sun orbits the Supermassive black hole that is at the centre of our galaxy, the Milky Way galaxy at a distance of about 27,000 Light Years. You’ll probably be surprised to hear that the Canis Major dwarf galaxy is nearer to us than the galactic centre.
Stars in an Elliptical Galaxy such as the Milky Way orbit the centre and the Milky Way is no different. The time it takes for the Sun to complete a full orbit of the Supermasssive is known as the Galactic Year. There might be an Universe Year but we’ll never know probably.
The time it takes to complete a full orbit of the galaxy is about 225 – 250 million Earth years. 250 Million Years ago was the Triassic Period when the first dinosaurs were walking the Earth. If we turned the time back one Galactic Year, Earth would be much different, no Internet, no Mobiles, not even humans could be found orbiting the Earth.
Picture Credit : Google
