Solar Masses to Ounces (M☉ to oz)
1 solar mass equals 7.014121512×10³¹ ounces (rounded).
How to convert solar masses to ounces
To convert solar masses to ounces, multiply the number of solar masses by 7.014121512×10³¹. The factor is rounded to 10 significant digits. To go the other way, multiply ounces by 1.42569529×10⁻³² (rounded).
ounces = solar masses × 7.014121512×10³¹
Example: 10 solar masses = 7.014121512×10³² ounces.
Approximate value. Standards for the solar mass varied by place and period, so this converter uses the most commonly cited value. Treat results as estimates, not exact figures.
About these units
Solar Mass (M☉)
About 1.988×10³⁰ kg, the mass of the Sun (roughly 332,946 Earths). Used for stars and galaxies.
The solar mass is the mass of the Sun used as the standard weight for stars, black holes and galaxies. The best estimate is about 1.98847 x 10^30 kg, with an uncertainty near 0.005 percent, while the International Astronomical Union's nominal value is 1.988416 x 10^30 kg. That is about 332,946 Earth masses, commonly rounded to 333,000.
Isaac Newton made the first known estimate in the Principia of 1687, putting the Earth to Sun mass ratio at about 1 to 28,700. In the third edition he revised this to 1 to 169,282 after finding that his solar parallax was faulty. Transits of Venus in 1761 and 1769 later improved the Sun's distance, and Cavendish's 1798 measurement gave a usable value of G.
The unit predates precise values of G and the astronomical unit, and it survives because Kepler's third law lets astronomers compute the masses of planets and binary stars directly from orbital data in solar units. The product GM of the Sun is known far better than the mass itself.
1 solar mass = 1.98847×10³⁰ kilograms (approximately).
Sources: Wikipedia: Solar mass
Ounce (oz)
One sixteenth of a pound, exactly 28.349523125 g. Used for food, mail and consumer goods in the US and UK.
A twelfth part is what ounce originally meant. It comes from the Roman uncia, one twelfth of the Roman pound, a word that also gave English the inch. The abbreviation oz does not come from English at all but from the Italian onza or oncia. Over the centuries many regions and trades used different ounces: the English Tower ounce of 29.16 g was abolished by Henry VIII in 1527, and the Dutch ons was redefined as exactly 100 g in 1820.
The avoirdupois ounce used for everyday goods is one sixteenth of a pound, exactly 28.349523125 g or 437.5 grains, the standard in the US and under the UK imperial system. It is not the same as the troy ounce for precious metals, and neither is the fluid ounce, which measures volume. Ounces still describe portions such as steaks and burgers, and they show up in unexpected places: fabric is graded by weight per area, so a 16 oz denim is a heavy cloth, and the copper on a circuit board is specified in ounces, where 1 oz is roughly 34.7 micrometres thick.
1 ounce = 0.02834952313 kilograms (approximately).
Sources: Wikipedia: Ounce; NIST Guide to the SI, Appendix B.8 (mass conversions)
Related conversions
- Ounces to solar masses (reverse)
- Solar masses to kilograms
- Solar masses to grams
- Solar masses to metric tons
- Solar masses to pounds
- Kilograms to ounces
- Grams to ounces
- Metric tons to ounces
- Pounds to ounces
- Milligrams to ounces
- Micrograms to ounces
- Carats to ounces
- Stone to ounces
- Short tons to ounces
- Long tons to ounces
- Troy ounces to ounces
- Daltons to ounces
See all weight & mass units.