4 ms·
We wouldn't have to get lucky if it was on the last stages of evaporating. If it has reached a mass of about a billion kg it would be shining plenty bright to d
by antonvs 1y ago
We wouldn't have to get lucky if it was on the last stages of evaporating. If it has reached a mass of about a billion kg it would be shining plenty bright to detect, and would only have a few thousand years to live before destroying most life on Earth with gamma radiation.
- terminalshort 1y agoAccording to this calculator https://www.vttoth.com/CMS/physics-notes/311-hawking-radiation-calculator https://www.vttoth.com/CMS/physics-notes/311-hawking-radiati..., the luminosity would only exceed that of the sun for 46.7 nanoseconds, so unless it's much less than 1 AU away we would probably be fine.