The use of meters instead of kilometers is too small a comparative scale for astronomy, and suggests an accuracy that is not always present. The distances are expressed in hundred of thousands or millions of kilometers, so often even larger units such as the Astronomical Unit (AU, about 150 million kilometers) or parsecs (about 30 trillion kilometers) are used to compare values.
The movie "An Inconvenient Truth" is about Global Warming.
Both are units used to measure distances. An angstrom is 10-10 meters - a very small unit. An AU is the distance from Earth to Sun, used to compare distances in the Solar System - a distance of about 150 million kilometers.Both are units used to measure distances. An angstrom is 10-10 meters - a very small unit. An AU is the distance from Earth to Sun, used to compare distances in the Solar System - a distance of about 150 million kilometers.Both are units used to measure distances. An angstrom is 10-10 meters - a very small unit. An AU is the distance from Earth to Sun, used to compare distances in the Solar System - a distance of about 150 million kilometers.Both are units used to measure distances. An angstrom is 10-10 meters - a very small unit. An AU is the distance from Earth to Sun, used to compare distances in the Solar System - a distance of about 150 million kilometers.
An Inconvenient Truth
AU is not used to measure the distances on earth, because a astronomical unit is a unit of measurement equal to the distance between Earth and Sun. So that's why you cannot use Au for measure the distances on Earth.
Map scale
Other units produce inconvenient numbers, because the distances are so great.The nearest star outside of the solar system is about 25,866,280,000,000 miles away.Don't you agree that "4.4 light years" is much easier to remember ?
Other units produce inconvenient numbers, because the distances are so great.The nearest star outside of the solar system is about 25,866,280,000,000 miles away.Don't you agree that "4.4 light years" is much easier to remember ?
Like 74,507,811.09
the day the earth stood still Al Gore's 'An Inconvenient Truth'
Light year is used to measure the stellar distances whereas miles and km is used to measure distance on Earth.
No. It doesn't matter.The distance between the earth and sun amounts to about 0.0004 percent of the distanceto the nearest star, and an even smaller portion of the distance to others. We hardly evereven state the distances to that degree of precision. So it would make no difference at allwhich one we picked. When you're talking about distances to stars, from earth or from sunare for all practical purposes identical.
A map scale.