What are the 2 most important factors of a star?

What are the 2 most important factors of a star?

Why Are Some Stars Brighter than Others?

• Two Main Factors. There are actually two factors that influence how bright a star appears to our eyes:
• 1) The Star’s Actual Brightness.
• 2) The Star’s Distance from Us.

What are the 2 factors that determine why we can see stars?

Two factors determine the brightness of a star:

• luminosity – how much energy it puts out in a given time.
• distance – how far it is from us.

What two factors have the greatest effect on a stars luminosity?

Luminosity Is Caused By… As the size of a star increases, luminosity increases. If you think about it, a larger star has more surface area. That increased surface area allows more light and energy to be given off. Temperature also affects a star’s luminosity.

What are the two forces that determine the size of a star?

The size of a star is a natural consequence of the balance between the inward pull of gravity and the outward pressure of radiation produced inside the star. When these two forces are balanced, the outer layers of the star are stable and said to be in hydrostatic equilibrium.

What are three factors that affect how bright a star appears?

Three factors control the brightness of a star as seen from Earth: how big it is, how hot it is, and how far away it is. Magnitude is the measure of a star’s brightness. Apparent magnitude is how bright a star appears when viewed from Earth.

Which term defines a star system with two stars?

Binary stars are two stars orbiting a common center of mass.

What are the two factors that can determine how bright a star looks from the Earth?

temperature. How bright a star looks from Earth depends on both its distance from Earth and how bright the star actually is. The brightness of a star can be described in two different ways: apparent brightness and absolute brightness. A star’s apparent brightness is its brightness as seen from Earth.

What are the factors affecting a star’s luminosity?

Three factors control the brightness of a star as seen from Earth: how big it is, how hot it is, and how far away it is. Magnitude is the measure of a star’s brightness.

What are the three factors that affect luminosity?

Can two stars have the same luminosity and different temperatures?

In fact, there is a nice relationship between the luminosity of a star and its temperature, but it also depends on the size. You can imagine that for two stars with the same temperature, but different sizes, the bigger star is going to be more luminous.

What forces affect a star?

Pressure and gravity. Pressure due to fusion reactions pushes outwards. Gravity pulls inwards to keep the star in equilibrium.

What 2 forces are working against each other during a star’s life?

Stars live out their lives in an exquisitely detailed equilibrium, or balance, between two powerful forces — outward pressure and the inward pull of gravity. The gravity force is a property of the mass of the star, and in order to support itself against gravity the star generates energy in its core.

What are the factors that affect the brightness of stars?

In conclusion, many factors affect the brightness of a star, and these include (but are not limited to) surface area, mass, evolutionary stage, temperature, and distance (if you are talking about apparent magnitude). Originally Answered: What determines the brightness of a star?

What are the biological factors that affect personality?

Difference in biological factors like gender, hormone level, functioning of endocrine glands like thyroid, parathyroid, pituitary gland, adrenal gland, gonads etc. will affect personality of a person. This determines how an individual behaves in certain situations.

What determines the color and temperature of a star?

The color of the star depends on the surface temperature of the star. And its temperature depends, again, on how much gas and dust were accumulated during formation. The more mass a star starts out with, the brighter and hotter it will be.

How does environment affect the development of personality?

Environment has its own impact on the development of an individual’s personality. Social factors or environmental factors are those factors which surrounds a person. Some social factors affect the personality of a person are as follows: