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Dertulm01
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How do scientists know that the Sun orbits the Milky Way? Is this something more ancient scientists knew or could have known hundreds of years ago?
big prairie said:The stars in our galaxy appear to be redshifted on one side of the center of the milky way, and blue shifted on the other. This would be good evidence that stars in our galaxy orbit the center.
The initial unadjusted data for the CMB looks like a ying-yang. It seems like this would be good evidence that we are orbiting our galaxies center.
pixel01 said:How come we can see the doopler effect if we travel at the same angular velocity with the stars of the two sides?
The Sun's orbit around the center of the Milky Way Galaxy has been observed and measured through various methods, such as using telescopes and satellites to track its movement and analyzing the effects of the Sun's gravitational pull on other objects in the Galaxy.
One major piece of evidence is the fact that the Sun is constantly moving through the sky, which can be observed by tracking the positions of stars and other celestial objects over time. Additionally, the discovery of the Galaxy's rotation and the presence of dark matter also support the idea of the Sun's orbit.
The Sun takes approximately 230 million years to complete one orbit around the Milky Way Galaxy. This is known as a cosmic year or galactic year.
The Sun's orbit around the Galaxy is elliptical, meaning it is shaped like an oval. This is also true for the orbits of other celestial bodies in the Galaxy.
Yes, we can indirectly observe the Sun's orbit by studying the movements of other objects in the Galaxy and through the use of advanced technologies such as telescopes and satellites. However, we are unable to see the Sun's orbit directly due to our position within the Galaxy.