3 ms·

350 trillion times luminosity of the sun?! I can’t even comprehend that! What would that look like at the distance of our sun?!

• dogma1138 8y ago
  It doesn’t work like that since this is on a galactic scale, the only thing you need for a galaxy to be 350 trillion times as luminous as the sun is a galaxy with 350 trillion stars which are just as luminous as the sun. Form an intra galactic viewpoint it wouldn’t look much different (at least to a human observer) and the only luminosity that you would really care about would still be your local star unless you are really close to something special that can cook you.
  • PhasmaFelis 8y ago
    Now, if you want to know what it would look like if the Sun suddenly became 350 trillion times more luminous, I think would probably look like your entire body melting/evaporating in seconds.
    • mikeash 8y ago
      I think it would be faster than that. Normal luminosity is roughly one kilowatt per square meter. This would be roughly 3.5e17 W/m^s. The largest nuclear bomb ever detonated was around 2e16 joules, so it would be like getting a Tsar Bomba to the face ten times a second.