GJ 251 is within the ten-parsec range (18.2 in ly), and is known for a close-in planet b. Today the news feeds are pointing me to c.
This planet orbits at a 51 day year and is, I suspect, tidally-locked. It is unfortunately four times Earth's mass. Whilst that does mean it likely still has its atmo; this also suggests a crushing supercritical atmo, such that "atmo" might not even be the word. So: no life.
At least we've seen c. The 51 day periodicity might be easy enough to spot in a high-mass planet against a M dwarf this close, but... GJ 251 is a flare star. That is why it has taken two decades to nail c down. And we only tweezed b in 2020.
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