What you measure something in depends on what property you want to measure. For example, whether you want to measure the star's diameter, its density, its surface temperature, its mass, etc.Two measurement systems are often used:
1) SI units, for example, diameter in kilometers, mass in kilograms, etc.
2) Some properties, and especially diameter and mass, are often compared with the Sun's mass; for example, a certain star might be said to have 2.1 times the mass of the Sun.
To measure the distance of stars you have to measure by light years.
Because they cannot visit stars and measure their sizes with a tape measure!
Answer #1:no=================Answer #2:Yes.Another answer: The primary use of triangulation may not be to measure the distance of stars, but the method which is used to measure the distance of close stars is primarily triangulation.
Magnitude.
light years
They measure them in light-years.
You can measure it by using absolute magnitude.
The sun, the stars.
The appliance of science
Red shift.
Distance.
It depends on what you want to measure: their numbers, distance, mass, temperature, ...