And you think it is cold where you live

[taiwan_girl]

https://phys.org/news/2025-04-webb-coldest-planet-orbiting-white.html

In 2020, astronomers detected WD 1856+534 b, a gas giant that orbits a star 81 light-years from Earth. This exoplanet, which is roughly six times the mass of Jupiter (making it a "super-Jupiter"), was the first transiting planet known to orbit a white dwarf (WD) star. In a recent paper, an international team of astronomers describes their observations of this exoplanet using the Mid-Infrared Instrument (MIRI) aboard the James Webb Space Telescope (JWST). Their observation confirmed that WD 1856+534 b is the coldest exoplanet ever observed.

This allowed them to constrain the mass of WD 1856+534 b and measure its atmospheric temperature. Their analysis revealed an average temperature of 186 K (-87°C; -125°F), making WD 1856+534 b the coldest exoplanet ever detected. They further confirmed that the exoplanet has a mass no greater than six times that of Jupiter, whereas previous observations produced an estimate of 13.8 Jupiter masses. Their results also constitute the first direct confirmation that planets can survive and migrate into close orbits near the habitable zones of WDs.

[jon-nyc]

[something something] ex wife.

• Larry

I miss him, he’d have the perfect joke

[89th]

Ha good call. Probably "and that's my ex-wife's mood after she gets out of the sauna"