The exoplanet where the rain is... IRON!

By Luke86 | Astrofacts | 13 Mar 2020


Wasp-76b, this is the name of the planet where it rains iron

It's a little less massive than Jupiter, 5 millions km far from its host star, with a 2-days revolution and tidal locking (so, it shows always the same hemisphere to its host star )

Welcome on WASP-76b! If these peculiarities aren't enough for you, listen up to this: on this planet it rains... IRON!! Yes, it's not a joke. The extremely closeness to its host star (trust in me, 5 millions km is a very poor distance in the Universe) allows its temperature raising towards 2500° C, causing the absence of clouds! In its atmosphere we can find atomic-form iron.

More we move close to the dark hemisphere and more temperature goes down, towards 1800° C: in these conditions, clouds and molecules start to form and the iron is condensing in liquid drops. Therefore, it's reasonable that in the night hemisphere of this planet, it rains iron, liquid-formed obviously.

Risultato immagini per wasp 76 

 

See you next time

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