A light year is the distance light travels in a year. That is roughly 6,000,000,000,000 miles (six trillion miles). Thus such a unit is used only to measure the largest distances, those between stars and galaxies.
It might be "the speed of light", not sure though
the light year
I am not aware that any unit of measurement called a "light mile" has ever been used. It could conceivably be a unit of time: the amount of time required for light to travel one mile, about 1/186,000th of a second.
There are several popular units of measurements to measure these large distances. One is the light year, which is the distance light can travel in one year (it travels 300,000 m/s). A light year is equal to a little less than 10^16 meters. Another unit of measurement is the parsec, or "parallax second" which is defined by the distance of an object that shifts one arcsecond in the sky per user movement of 1 A.U. (astronomical unit) It is equal to 3.26 light years or about 3x10^16. A final unit of measurement that is widely used in the solar system, such as from Earth to our star, the Sun, is the astronomical unit which is the distance from the Earth to the sun. One A.U. is approximately 1.5 x 10^8 km.
Diameters of stars are not usually expressed in light-years. The term "light-year" is used for much larger distances. Its diameter is somewhere around a thousand times the diameter of our Sun, so that would be about 1.4 billion kilometers. Of course, you can convert that to light-years if you like.
Heat.
Any measure of length, such as meters, centimeters, or light-years.
Distance in space is measured in 'light years' or in 'scientific notation'
seconds!
When measuring distances in space, the distances are so huge that using kilometres and miles becomes pointless. A number of other measuring systems are used. A light year is the distance that light travels in a year. It is about 9,460,730,472,581 kilometres or about 5,878,630,000,000 miles. After the sun the nearest star is over 4 light years away. Many of the stars you see in the sky are hundreds of light years away and much more. So it is a lot easier to say 100 light years than 587,863,000,000,000 miles.
Yes. At least, that is one measurement that is often used. Parsecs are also often used in astronomy.
Ask your science teacher
measure liquids , measure length,.....
Since the metric system is the system of measurement used in all sciences, Celsius is usually the form of temperature measurement used.
There is no "measurement of light". The units used depend on what you want to measure: its speed, frequency, wavelength, energy per photon, etc.
The Metric system ex: centermeters, milliliters , and grams
It depends on what units of measurement were used for 54 and 75. Miles, centimetres, yards, light years, etc.