light years
A stellar unit refers to a unit of distance used in astronomy to measure the distance between stars. It is typically equivalent to the mean distance between stars within a galaxy, which can vary depending on the galaxy being observed.
. . they are a convenient unit. Another convenient unit is the parsec.
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.
The appliance of science
mainly meters are being used : symbol (m)
Angstroms
meter
Metre
magnitude for brightness, lightyear for distance, degrees C or K for temperature or colour, solar masses for mass, ...
Kilometers are a unit of length, used to measure distance.
If I remember all of my astronomy classes correctly, the unit of measurement between Earth and the Sun is 1 A.U., or Astronomical Unit, which is equal to 93 million miles. 1 light year is equal to 5,865,696,000,000 miles (9,460,800,000,000 km). Astronimical Units are used to measure distance within our own galaxy. To measure the distance between stars and galaxies, the unit is called a parsec (PC). 1 PC = 3.26 light years. Hope this helps!
Meters or kilometers, depending on the distance.