Astronomers see it as the start of a bonanza of exoworld studies to come.
. The fact that it was able to take such a sharp picture of HIP 65426 b suggests it will be able to photograph even smaller planets, the size of Saturn or even Neptune, around other stars. That would dramatically improve scientific understanding of far-away planetary systems.Credit: NASA/ESA/CSA, A. Carter , the ERS 1386 team, and A. Pagan
But observing in infrared wavelengths, as Webb does, helps boost the contrast between star and planet. “You’re in the regime where planets are brightest and stars are dimmest,” says Aarynn Carter, an astronomer at the University of California Santa Cruz and lead author on the preprint.Carter and his colleagues chose to study HIP 65426 b after other astronomers discovered it in 2017, using the European Southern Observatory’s Very Large Telescope in Chile.
Future studies will probably probe how HIP 65426 b formed and evolved over time. Meanwhile, other astronomers are planning to use Webb to study many other exoplanets, especially big ones that lie relatively far from their host star and can thus be directly imaged.analysing the starlight passing through a planet’s atmosphere to see what chemical compounds it contains
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