Asterisk changed text to italic

Its a bit weird that when typing 0.6 "asterix"Temperature as in the formula below, the system removes the asterix and makes Temperature itallic.

Speed_of_sound = 331.4 + 0.6Temperature + 0.0124Relative_Humidity

I think that must be some sort of standard because when I quoted an email I received in this post the italicised part had an asterisk at each end of it.

ArchiveSW - Display & Data Archive Storage,

The answer is here:


Speed_of_sound = 331.4 + ( 0.6 * Temperature) + (0.0124 * Relative_Humidity )

It works fine when I type it. Try using proper spacing.