Convert Apothecary Drams to Solar Masses
Convert Apothecary Drams (dr ap) to Solar Masses (M☉) instantly and accurately.
Conversion Formula
M☉ = dr ap × 1.954796875e-33
About Apothecary Drams
An apothecary dram (dr ap) equals 3 scruples or 60 grains - approximately 3.888 grams. Part of the traditional apothecary system used by physicians and pharmacists from the Middle Ages through the 19th century, it was the standard unit for prescribing and dispensing medicines. Prescriptions written in the apothecary system used special symbols: the dram symbol (℈) and ounce symbol (℥) appear throughout historical medical records and old pharmacy ledgers. The apothecary dram differs from the fluid dram (a volume unit) and from the avoirdupois dram.
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☉.
Quick Reference Table
| Apothecary Drams (dr ap) | Solar Masses (M☉) |
|---|---|
| 1 dr ap | 1.955 × 10-33 M☉ |
| 2 dr ap | 3.91 × 10-33 M☉ |
| 5 dr ap | 9.774 × 10-33 M☉ |
| 10 dr ap | 1.955 × 10-32 M☉ |
| 25 dr ap | 4.887 × 10-32 M☉ |
| 50 dr ap | 9.774 × 10-32 M☉ |
| 100 dr ap | 1.955 × 10-31 M☉ |