light years
Unit for time is a second.There are various instruments to measure temperature: a thermometer, a thermocouple are two.
A marine chronometer measures time. It is a very precise instrument because it can also be used to measure the longitude of the ship at sea using the time shown and the angle of the sun.
For nearby stars, the parallax method gives the most accurate measure of distances.For nearby stars, the parallax method gives the most accurate measure of distances.For nearby stars, the parallax method gives the most accurate measure of distances.For nearby stars, the parallax method gives the most accurate measure of distances.
light years
It is not.913 miles per hour is a measure of speed while kilometres are a measure of distance. To get speed you need a unit of time. The SI unit is a second, so using that as the unit of time,913 miles per hour is 0.408 kilometres per second.It is not.913 miles per hour is a measure of speed while kilometres are a measure of distance. To get speed you need a unit of time. The SI unit is a second, so using that as the unit of time,913 miles per hour is 0.408 kilometres per second.It is not.913 miles per hour is a measure of speed while kilometres are a measure of distance. To get speed you need a unit of time. The SI unit is a second, so using that as the unit of time,913 miles per hour is 0.408 kilometres per second.It is not.913 miles per hour is a measure of speed while kilometres are a measure of distance. To get speed you need a unit of time. The SI unit is a second, so using that as the unit of time,913 miles per hour is 0.408 kilometres per second.
You can measure it by using absolute magnitude.
The sun, the stars.
Astronomers measure it by predicting with the stars and using scientific tools
using a sundial
Using the sun and stars.
It is not known what exact tools Tycho Brahe used to measure the planets and stars movements. He may have made special calculations by using some type of compass.
To measure the distance of stars you have to measure by light years.
Look at the position of the stars. See what degree they are at and you'll know the time. That's how ships used to navigate. The position of the stars will allow a knowledgable observer to tell the time. The observable stars depends on location and time of the year.
Parallax would be easier to measure if the Earth were farther from the sun. This way, there will be a wider angle to the stars using the parallax method.
The simple answer is by using time variant properties.
The sun, stars and the changing between day and night.
You can measure time using a: Sundial Water Clock Sandglass Pendunum Clock Quartz Clock