While lightyears are used in measuring distances between galaxies and suns and the distances to extra solar planets, the measurements inside our solar system (between the planets in our solar system are miles and kilometers. The larger A.U.s (Astronomical Units) or the mean distance from the Earth to the Sun can also be used. An A.U. is equivalent to 149 598 000 kilometers.
The astronomical unit. it is defined as the average distance of the Earth from the Sun and is equal to 149.6 million kilometers.
Light year (the distance light travels in 1 year)
Kilometre or Mile
Massive planets around nearby stars.
hot,dim stars.
A star's radius is the distance from it centre to its visible surface. The bigger the star, the larger the radius. The radius is not the best means of comparing stars, it is perhaps better to compare stars by their mass.
One of them is that gods would carry the stars and planets across the sky, and that everything orbited around the earth, and not everything orbiting around the sun. Also, they believed that the earth was flat and not round.
Because stars are much, much further away than planets are. What sounds better? The nearest star is 4.24 lightyears away or 40,132,658,900,000 (Or 4.013x10^13) kilometers? To go even deeper, it's better to give distance in astronomical units (1 au = Mean distance from Sun to Earth), megameters (1Mm = 1,000km) or gigameters (1Gm = 1,000,000km) when refering to planets. When refering to distance, it's best and least confusing to use smaller units. If you reference somoething extremely far away, you would often use parsecs (Be it parsecs, megaparsecs, etc.). where 1 parsec = 3.2 lightyears.
The best tool to use to measure distance underwater is
Massive planets around nearby stars.
A tape measure would probably be the best choice.
small hole gauge
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miles
Miles is best.
inertia?
Inches. Just kidding, miles.
Mile or kilometer mile or kilometer.
KILOMETER. it is a standard measurement. most measurements like area, perimeter, depth of ocean, speed of light, speed of sound all such things are measured in terms of kilometer. so it is the best way to measure distance as well
inches or centimeters, I would use inches.