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Il y a 7 heures · With a mass of 1.02 M ☉, it is almost double the 0.5–0.6 M ☉ average. This mass is packed into a volume roughly equal to the Earth's. [56] The current surface temperature is 25,200 K. [13] Because there is no internal heat source, Sirius B will steadily cool as the remaining heat is radiated into space over the next two billion years or so.
