| − | A '''solar mass''' is the unit of measure that is equal to the mass of the sun. It is used in [[astronomy]] to show relative masses between celestial objects (eg 1.4 solar masses is 1.4 times the mass of the sun). | + | A '''solar mass''' is the unit of measure that is equal to the mass of the [[sun]]. It is used in [[astronomy]] to show relative masses between celestial objects (eg 1.4 solar masses is 1.4 times the mass of the sun). One solar mass is approximately 1.989 * 10<sup>30</sup> kg. |