| − | A '''solar mass''' is the unit of measure that is equal to the [[mass (science)|mass]] of the [[sun]]. It is used in [[astronomy]] to show relative masses between celestial objects (e.g. 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. | + | A '''solar mass''' is the unit of measure that is equal to the [[mass (science)|mass]] of the [[sun]].<ref name=space.com>{{cite web|url=https://www.space.com/42649-solar-mass.html|title=What Is Solar Mass?|accessdate=2019-03-19}}</ref> It is used in [[astronomy]] to show relative masses between celestial objects (e.g. 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. It is equivalent to roughly 333,000 times the mass of the [[Earth]].<ref name=space.com/> |