Question

How do scientists calculate and measure a stars mass, temperature, and element?

Answer 1

Hint :Mass is both a property of a human body and a measure of its resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravity to other bodies. The essential SI unit of mass is that the kilogram.

Complete Step By Step Answer:
Each element absorbs light at specific wavelengths unique to the atom. When astronomers check out an object's spectrum, they will determine its composition supporting these wavelengths. The foremost common method astronomers use to work out the composition of stars, planets, and other objects is spectroscopy.
 Official unit for temperature is kelvin (K); a body at (theoretical) temperature has no movement in the least. To convert between Celsius °C and Kelvin °K, subtract 273°C: On a stellar spectrum, the profiles are often assimilated to a Planck's function and therefore the peak indicates the star temperature.
Mass is that most vital stellar property. This is often because a star's life may be a continuous fight against gravity, and gravity is directly associated with mass. The more massive a star is, the stronger its gravity. It even controls the star's lifetime, since the speed of fuel consumption determines lifetime.

Note :
Astronomers estimate the space of nearby objects in space by employing a method called heliocentric parallax, or trigonometric parallax. Simply put, they measure a star's apparent motion against the background of more distant stars as Earth revolves around the sun.