Researchers have discovered the “bizarre” exoplanet WASP-79b, almost 800 light-years from Earth, doesn’t have a blue sky as our planet does. As a substitute, its skies are yellow.
Based on a press release from NASA, WASP-79b orbits its host star as soon as each 3.7 Earth days and isn’t within the liveable zone, the proximity of which a planet is to a star the place it might assist liquid water.
The exoplanet, referred to as a “scorching Jupiter,” additionally doesn’t have any proof of Rayleigh scattering, which is what causes Earth’s skies to look blue by “scattering the shorter (bluer) wavelengths of daylight,” the company famous. That is left specialists puzzled.
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“This can be a robust indication of an unknown atmospheric course of that we’re simply not accounting for in our bodily fashions,” stated researcher Kristin Showalter Sotzen of the Johns Hopkins College in a press release. “I’ve proven the WASP-79b spectrum to various colleagues, and their consensus is ‘that is bizarre.'”
Along with having a yellow sky, WASP-79b is exceptionally scorching, with a median temperature of roughly 3,000 levels Fahrenheit, making it one of many largest exoplanets ever noticed.
“WASP-79b is twice the mass of Jupiter and is so scorching it has an prolonged ambiance, which is right for finding out starlight that’s filtered by and grazes the ambiance on its approach towards Earth,” NASA added.
The exoplanet is 780 light-years from Earth within the constellation Eridanus. A light-weight-year, which measures distance in area, equals 6 trillion miles.
WASP-79b can also have “scattered clouds, and iron lifted to excessive altitudes might precipitate as rain,” the company defined.
Researchers additionally found that one other exoplanet, WASP 76-b, is believed to have “iron rain.”
Sotzen added that the researchers are usually not actually positive what’s inflicting the phenomena, because it’s the primary time they’ve seen this.
“We have to maintain a watch out for different planets like this as a result of it might be indicative of unknown atmospheric processes that we do not at the moment perceive,” Sotzen defined. “As a result of we solely have one planet for example, we do not know if it is an atmospheric phenomenon linked to the evolution of the planet.”
The findings had been revealed within the Astronomical Journal.