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6.674 × 10^-11 N · m^2/kg^2, it is a key quantity in Newton's law of universal gravitation.

Approximately 3.085677581 × 10^16 meters, it is the distance at which one astronomical unit subtends an angle of one arcsecond.

5.670374419 × 10^-8 W/m^2·K^4, signifies the total intensity radiated by a black body across all wavelengths.

1.0973731568508 × 10^7 m^-1, important in atomic physics, used to describe the wavelengths of spectral lines.

6.02214076 × 10^23 and represents the number of atoms, ions, or molecules in one mole of any substance.

149,597,870.7 km, it is the average distance from the Earth to the Sun.

Currently estimated to be about 70 km/s/Mpc, it represents the rate of expansion of the universe.

299,792,458 m/s and signifies the maximum speed at which all conventional matter and information can travel.

6.62607015 × 10^-34 J·s, important for quantum mechanics, relates energy of photon to its frequency.

Approximately 1.4 solar masses, it is the maximum mass of a stable white dwarf star.

Approximately 3.828 × 10^26 watts, it is the measure of the energy output of the Sun per second.