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≡ 1 long ton × g 0 / 1 sq ft ≈ 1.072 517 801 1595 × 10 5 Pa: micrometre of mercury: μmHg ≡ 13 595.1 kg/m 3 × 1 μm × g 0 ≈ 0.001 torr ≈ 0.133 3224 Pa [33] millimetre of mercury: mmHg: ≡ 13 595.1 kg/m 3 × 1 mm × g 0 ≈ 1 torr ≈ 133.3224 Pa [33] millimetre of water (3.98 °C) mmH 2 O ≈ 999.972 kg/m 3 × 1 mm × g 0 = 0.999 ...
Density system unit unit-code symbol or abbrev. notes sample default conversion combination output units Metric: kilogram per cubic metre: kg/m3 kg/m 3: 1.0 kg/m 3 (1.7 lb/cu yd)
The Sun is a G-type main-sequence ... Density: g/cm 3: ... giving 800 km radius and 0.5 × 10 21 kg mass as cut-offs that normally would be enough for hydrostatic ...
Therefore, as the body accumulates matter at a given fixed density (in this example, 997 kg/m 3, the density of water), its Schwarzschild radius will increase more quickly than its physical radius. When a body of this density has grown to around 136 million solar masses (1.36 × 10 8 M ☉ ), its physical radius would be overtaken by its ...
The true stellar density near the Sun is estimated as 0.004 stars per cubic light year, or 0.14 stars pc −3. When combined with estimates of the stellar masses, this yields a mass density estimate of 4 × 10 −24 g/cm 3 or 0.059 solar masses per cubic parsec.
The standard unit is the meter cubed per kilogram (m 3 /kg or m 3 ·kg −1). Sometimes specific volume is expressed in terms of the number of cubic centimeters occupied by one gram of a substance. In this case, the unit is the centimeter cubed per gram (cm 3 /g or cm 3 ·g −1). To convert m 3 /kg to cm 3 /g, multiply by 1000; conversely ...
The solar mass (M ☉) is a standard unit of mass in astronomy, equal to approximately 2 × 10 30 kg (2 nonillion kilograms in US short scale). It is approximately equal to the mass of the Sun . It is often used to indicate the masses of other stars , as well as stellar clusters , nebulae , galaxies and black holes .
At IUPAC standard temperature and pressure (0 °C and 100 kPa), dry air has a density of approximately 1.2754 kg/m 3. At 20 °C and 101.325 kPa, dry air has a density of 1.2041 kg/m 3. At 70 °F and 14.696 psi, dry air has a density of 0.074887 lb/ft 3.