>>13823955>>13824028>>13824388>>13825305pus-brainlets, imbeciles
>>13823788Every year, the stars in the sky do a little circle, due to the aberration caused by the change in momentum of the incoming light due to the directional motion of the Earth. This stellar aberration conclusively establishes the thing.
There is also the stellar parallax, much harder to detect, that not only gives the motion of the Earth, but the distance to the stars.
There are other effects measurable in principle, but they are negligible, like the coriolis forces due to the Earth's orbit.
