James Webb Captures Tiny Exoplanet
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James Webb telescopeMailOnline
•Science
Science
James Webb telescope captures its first direct image of an exoplanet
84% Informative
The planet, dubbed TWA 7b , was found orbiting a young red dwarf star 111 light-years from Earth .
Scientists estimate the celestial body is roughly the same mass as that of Saturn , or 100 times larger than Earth .
It is the smallest exoplanet ever directly observed - 10 times less massive than previous discoveries.
By simulating the effects of an eclipse, scientists were able to filter out the excess starlight and spot the planet's faint infrared glow.
The JWST has found hundreds of exoplanets but all have been found indirectly by carefully watching the host star.
Every gas absorbs a slightly different wavelength of light, and when this happens a black line appears on a complete spectrum.
These lines correspond to a very specific molecule, which indicates it's presence on the planet.
They are often called Fraunhofer lines after the German astronomer and physicist that first discovered them in 1814 .
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