S301 turned up as a smudge in a reconstructed image in 2023 and was then found again in archived pointings from 2021 and 2017. No spin has been measured. The decade-long timeline comes from a simulated dataset running to 2035, one assuming a radial velocity t…
A faint point of light showed up 15 milliarcseconds northwest of Sagittarius A* in the spring of 2023, not in a raw frame but in an image reconstructed from interferometry data. Its position and the … [+10084 chars]