A dark-brown dwarf located 47 light - year off is behave very strangely . The would - be lead ’s brightness is constantly convert , vacillate by as much as 30 % in just eight hour . This could be an atmospherical ruffle that dwarf Jupiter ’s outstanding Red Spot .
browned dwarf are objects that fall between the minimum mass of a dwarf wiz and the maximum mass of a petrol giant — too big to be just a planet , but not freehanded enough to take fire stellar fusion . That in - between status already put them in a somewhat sad berth , and it only gets bad from there . One nearby brown dwarfis full of so many noxious accelerator that its atmosphere likely smells like “ stinking bollock with a hint of ammonium hydroxide ” , while another is actuallycolder than boiling water system .
https://gizmodo.com/cold-smelly-failed-star-might-be-the-most-pathetic-thi-5687086
https://gizmodo.com/the-coldest-brown-dwarf-ever-discovered-is-colder-than-5781425
Now , the dark-brown gnome 2MASS J21392676 + 0220226 — 2MASS 2139 to its friends — has shown up to bushel a routine of respect to its kind , in the form of an absolutely reprimand storm on its surface . Observations by astronomer at Chile ’s Las Campanas Observatory found the brown dwarf in a constant state of magnetic field , its brightness dipping up and down at an unprecedented rate and order of magnitude . The most likely answer is that part of the brown nanus are in fact darker than others , and we ’re seeing that change as the brownish dwarf rotates .
Researcher Jacqueline Radigan of the University of Toronto total :
“ We found that our target ’s luminance changed by a whopping 30 per penny in just under eight 60 minutes . The best account is that bright and darker fleck of its atmosphere are come into our persuasion as the browned gnome spins on its axis of rotation . ”
If that is indeed the typesetter’s case , then we ’re appear at one of the bighearted super - storm ever find . Because of the brown gnome ’s greater size , its storm would be far bigger than the Great Red Spot that has raged on Jupiter for nearly 200 days — and that storm is three times the size of Earth . Both of these atmospherical disturbances are the final result of tiny grains of silicate and metals contract into giant dust storms .
Read the original paperhere . Artist ’s conception by Jon Lomborg .
AstronomyJupiterScienceSpace weather
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