Feet
Kilometers
It would be millimetres.
A kilometre is quite a long unit of measurement. For this reason you would use it to measure large things on earth. For example:The distance between citiesThe length of a coastlineHow far a train journey is
To measure the distance of stars you have to measure by light years.
Kilometres or miles.
Light year is used to measure the stellar distances whereas miles and km is used to measure distance on Earth.
Kilometers
Distances on the road, or very large parcels of land. Probably the distance from the earth to the moon.
No. A light year measures such large distances that it would be highly impractical to measure anything on Earth. The light year is used to measure distance in space beyond the solar system.
I would use million miles to measure the distance from the Earth to the Sun. The average distance is about 93 million miles.
Light year is used to measure the stellar distances whereas miles and km is used to measure distance on Earth.
It would be feet
Because of the unwieldy large numbers that would otherwise be required.A Parsec is the distance from the Sun to Earth, and a light year is the distance that light would travel in a year.
An AU is much larger than any distance on Earth. Earth's equatorial circumference is about 0.00027 . So measuring distances on Earth in AU would be like measuring the sizes of small animals in miles.
Astronomers measure the parallax angle of a planet or star to determine its distance from Earth. By observing the apparent shift in position of the object against the background stars as the Earth orbits the Sun, astronomers can calculate the angle and use it to estimate the object's distance.
Distance is typically measured in meters, while liters are used to measure volume of liquid. To measure the distance of a door, you would use meters. Liters are not relevant for measuring distances.
Yes, it would be inappropriate to measure the distance from Pluto to Earth in light-years. Light-years are a unit of measurement for distances in space based on how far light travels in a year. Since Pluto and Earth are both within our solar system, it would be more accurate and practical to use astronomical units (AU) or kilometers to measure their distance.