if you are not near a star... about the lowest you go is 3 degrees above absolute zero. You would need an extra scarf and wooley hat if you were out there. Brrrr
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This is a strangely complex question.
Temperature is defined in terms of the average kinetic energy of particles.
But there are extremely few of these in outer space.
Without particles there is not actually a measurable temperature.
However if we put an object there then it will either heat up, or cool down until the radiant energy received = radiant energy emitted.
And as the overwhelming majority of the sky is black, then the temperature which creates equilibrium is quite low.
Temperature is defined in terms of the average kinetic energy of particles.
But there are extremely few of these in outer space.
Without particles there is not actually a measurable temperature.
However if we put an object there then it will either heat up, or cool down until the radiant energy received = radiant energy emitted.
And as the overwhelming majority of the sky is black, then the temperature which creates equilibrium is quite low.
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DEPENDS ON WHERE YOU MESURE IT.
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It depends on how close it is to a star.