Convert Solar Masses to Scruples
Convert Solar Masses (M☉) to Scruples (s ap) instantly and accurately.
Conversion Formula
s ap = M☉ × 1.534686309e+33
About Solar Masses
A solar mass (M☉) is the mass of our Sun - approximately 1.989 × 10³⁰ kg - and is the standard unit for measuring stellar and galactic masses in astronomy. The Sun contains 99.86% of the total mass of the Solar System. Stellar evolution models describe stars of 0.08 M☉ (the minimum for hydrogen fusion) to over 200 M☉ (the most massive known stars). Supermassive black holes at the centres of galaxies range from millions to billions of solar masses: the black hole at the centre of the Milky Way (Sagittarius A*) is approximately 4.3 million M☉.
About Scruples
A scruple (s ap) is a unit of the apothecary weight system equal to 20 grains or approximately 1.296 grams. Derived from the Latin 'scrupulus' (a small sharp stone used as a counterweight), it was the basic dispensing unit in pre-metric pharmacy across Europe. The apothecary system divided the fluid ounce into 8 drams, each dram into 3 scruples, and each scruple into 20 grains - a hierarchy memorised by every 19th-century pharmacist.
Quick Reference Table
| Solar Masses (M☉) | Scruples (s ap) |
|---|---|
| 1 M☉ | 1.535 × 1033 s ap |
| 2 M☉ | 3.069 × 1033 s ap |
| 5 M☉ | 7.673 × 1033 s ap |
| 10 M☉ | 1.535 × 1034 s ap |
| 25 M☉ | 3.837 × 1034 s ap |
| 50 M☉ | 7.673 × 1034 s ap |
| 100 M☉ | 1.535 × 1035 s ap |