The JamesWebbSpaceTelescope has snapped an image an exoplanet for the first time.
The James Webb Space Telescope has directly imaged an exoplanet for the first time. This is exciting because it is very rare for exoplanets to be directly imaged, as usually, their existence has to be inferred from other data. By taking an image of a planet outside our solar system, Webb demonstrates how we’ll be able to gather more information than ever before about distant worlds.
Webb made one such direct observation of the exoplanet HIP 65426 b, and was able to capture an image of the planet using four different filters. Each of these filters corresponds to a different wavelength of light, capturing different features of the planet and its environment. The planet is a big one at between six and 12 times the mass of Jupiter, and it is a relative youngster at just 15 to 20 million years old.
To observe the planet, the researchers needed to block out the light coming from the planet’s host star. As the star is so much brighter than the planet, this light has to be blocked to make it possible to see the planet. This is done with an instrument called a coronagraph, which is a mask that blocks light from a bright source.
France Dernières Nouvelles, France Actualités
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