I found https://www.nasa.gov/goddard/2023/webb-discovers-methane-carbon-dioxide-in-atmosphere-of-k2-18b https://www.nasa.gov/goddard/2023/webb-discovers-methane

I found https://www.nasa.gov/goddard/2023/webb-discovers-methane-carbon-dioxide-in-atmosphere-of-k2-18b https://www.nasa.gov/goddard/2023/webb-discovers-methane-car... which says that K2-18b is 120 light years away, in the Leo constellation: https://en.wikipedia.org/wiki/Leo_(constellation) https://en.wikipedia.org/wiki/Leo_(constellation) Also https://en.wikipedia.org/wiki/K2-18b https://en.wikipedia.org/wiki/K2-18b