codenameboi codenameboi
  • 23-12-2018
  • Physics
contestada

planet.3.Astar is 10 light years away from the earth. Suppose it brightens up suddenly today, after how long can we see this change?

Respuesta :

irina8 irina8
  • 23-12-2018
After 10 years, I guess.
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