Want this question answered?
You can conclude that it is farther than a certain distance. How much this distance is depends, of course, on how accurately the parallax angle can be measured.
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.
a coin
distance between the earth and the sun.
There are a few methods that one could use to measure the distance between the moon and the earth. The easiest one that I can think of is this: Place a mirror on the moon, shine a laser on it and time how long it takes for the light from the laser to the moon and back again. Take this number and multiply by the speed of light Actually, NASA did exactly this on the Apollo 11 mission! Before Neil Armstrong & co. departed from the moon, they left a mirror there. To this day, scientists can point a laser and a telescope at the moon, and aim the laser at these mirrors, in order to accurately measure the distance between the earth and the moon! Another method that you can use is to measure the angles to the moon from two different cities on the surface of the earth at the same time. By using similar triangles, you can compute the distance to the moon. Mind you, this requires EXTREMELY accurate measurement techniques.
a stick.
It's a measure of how far apart they are.
You can conclude that it is farther than a certain distance. How much this distance is depends, of course, on how accurately the parallax angle can be measured.
2000-2500 miles, you can measure on google earth
Let's say we want to measure the distance between objects A and B. First, we measure the distance from the Earth(point E) to these objects(using Doppler-shifts).Then, we measure the angle AEB.We now know the lengths of two sides, and the angle between them. That's how we find the distance AB.
The unit used is the astronomical unit, defined as the semimajor axis (mean radius) of the Earth's orbit. The distances are scaled according to Kepler's laws of planetary motion. The fundamental distance is the distance to Venus on a close approach, which was measured accurately by triangulation from two points on the Earth's surface during a transit.
light year
Parallax is the method that astronomers use to measure the distance from the sun to the earth.
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.
1500-1700 miles, you can measure on google earth
2000-2500 miles, you can measure on google earth
a coin