4 ms·
You have to wonder the certainty of what emission or absorption lines? from that distance .. They feel confident in the instruments they're using .. but.. if it
by stall84 4y ago
You have to wonder the certainty of what emission or absorption lines? from that distance .. They feel confident in the instruments they're using .. but.. if it is possible that's wild
- nick478016 4y agoThey use the Doppler shift of emission lines in the starlight to find exoplanets, due to a planet pulling its star around their mutual center. To the tune of measurement precision in the realm of 1 m/s! It's all pretty wild