M☉

Etymology

 * M (mass) and subindex ☉ (sun).

Symbol

 * 1)  Solar mass: a unit of measurement, equal to the mass of the Sun, which is 2&times;1030 kg or 333,000 M🜨.
 * the maximum mass each pulsar can have is only 0.08 M☉.
 * 1)  The mass of the Sun specifically.