Color of a star
List the colors that we can use to determine other factors of a star.
Blue, White, Orange, and Red
How can we determine a star's temperature by?
Color and its luminosty.
How long does the Super Nova stage of a star last?
When the size of a star increases, luminosity increases
Explain how astronomers find the size of a star.
Astronomers find a star's size based on its own mass.
How does a stellar nebula turn into an average star?
Gravity
What can you tell about a star if its color was blue?
That it is super hot.
What would be the temperature of a star if the color was orange?
The temperature of that star would be cool.
How does the radius of a star affect luminosity?
The wider the Radius the brighter the star.
Define a star.
"a fixed luminous point in the night sky which is a large, remote incandescent body like the "sun"
When an average star is created how long does the average star last until it is transformed?
A few hundred million years
The temperature of a star is hot, so what would the color be?
Blue/White
What is the relationship we can see between a star's temperature and its color?
If the color is blue or white it has a warmer temp. If the color is orange or red it has a colder temp.
What are the dimmest types of stars?
Brown dwarfs
Can you break down what is in control of a star's size?
If a star's mass is large, the bigger the star. When a star's mass is less, the star will be smaller.
How does a Red Giant turn into a Planetary Nebula?
It sheds its outer layers
If the temperature of a star is cool, what color would it be?
Orange/Red
What is the temperature of stars found in the Main Sequence?
Warmer temperatures.
Explain how astronomers find the luminosity of a star.
Astronomers find the luminosity of a star by measuring its distance.
Why do stars expand?
The core of the star is really hot which pushed the outer layers outward.
What is the life span of a Planetary Nebula until it is turned into a white dwarf
20,000 years
Just by using the color of a star what can we infer about a star's luminosity?
Colder temp.= higher luminosity
Higher temp.= lower luminosity
If a star's luminosity was low, what would its temperature be?
Hotter Temperature.
What things affect the luminosity of a star?
When the size of a star increases, luminosity increases.
Does the size of a star determine its lifespan?
The larger the star's mass is, the shorter its lifespan.
When the white dwarf forms, how long does it have until it is a Massive Star?
50 million years