Temperamental Stars Misinterpret Distant Planets
This is a news story, published by ScienceDaily, that relates primarily to Neptune news.
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Temperamental stars are distorting our view of distant planets

81% Informative
Most of the information we have about planets beyond our solar system (exoplanets) comes from looking at dips in starlight as these planets pass in front of their host star.
Researchers looked at the atmospheres of 20 Jupiter- and Neptune -sized planets and found that the host stars' changeability distorted the data for about half of them.
If researchers did not properly account for these variations, the team said, they could misinterpret features such as the planets' size, temperature and the composition of their atmospheres.
The risk of misinterpretation is manageable with the right wavelength coverage.
Shorter wavelength, optical observations such as those used in this study are particularly helpful, as this is where stellar contamination effects are most apparent.
The other is to have two observations of the same planet in the optical region of the spectrum that are taken at different times.
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