I’ve just had to e-mail a science education website (which shall remain nameless) to explain that the interior of the Sun is probably not, as it claims, around 107 Kelvin. By way of comparison, water freezes at about 273 Kelvin.
The problem seems to be a typical copy-and-paste problem in software: the power notation in 107 has been lost at some point. (A scan through a few online sources suggests estimated temperatures for the core of the Sun cluster around 1.5 x 107 K.) I wonder how many such errors are propagating, seldom noticed, through the Internet: the dords of our day.
Update: I received the following response:
I understand that the [page] is speaking about absolute temperature and the Planck temperature, and it is in this context that the Sun's interior temperature is mentioned as only 107 K. It seems to me to be something different to what you are expecting to read, which would be the Sun’s interior temperature of 1.5 X 10**7 Kelvin. This is only my opinion, however I will ask for a second opinion to our scientists. Given that the page in question also refers to what things were like 10-43 seconds after the Big Bang, I think I’ll stick to my interpretation...