4 ms·
relative speed against other stars is very much detectable by red and blue shift of light. We would definitely know if sun revolves around something, meanining
by codesnik 3y ago
relative speed against other stars is very much detectable by red and blue shift of light. We would definitely know if sun revolves around something, meanining changes its direction.
- kadoban 3y agoI think we'd see the paralax being all weird as well.
- bell-cot 3y agoYes, and I suspect the parallax anomalies would have been noticed a few decades before the redshift / blueshift anomalies: https://en.wikipedia.org/wiki/Stellar_parallax_method#History_of_measurement https://en.wikipedia.org/wiki/Stellar_parallax_method#Histor... https://en.wikipedia.org/wiki/Redshift#History https://en.wikipedia.org/wiki/Redshift#History
- skykooler 3y agoAt these distances, the sun's direction if it were orbiting a black hole would have only changed by a fraction of a degree in the hundred or so years we've been able to measure its velocity relative to nearby stars - is that data precise enough that that is not within the margin of error?