Types of Stars
Which is Greater?
Sun Spotlight
Mysterious Moon
Brightness
100
How many stars are in our solar system?
One! Our sun!
100
Which is greater: The Earth or the Moon?
The Earth is greater in size than the moon.
100
What is another name for our sun?
Sol is another name for the sun.
100
Is the moon really made of cheese?
No! The moon is made of rock and metal.
100
What is apparent brightness?
Apparent brightness is how bright a star appears to be based on its distance.
200
What is the hottest type of star?
The hottest star is blue.
200
Which is greater: The Sun or the Earth?
The Sun is greater in size. Over 1 million Earths can fit inside the sun.
200
What type of star is our sun?
Our sun is a yellow star. It is average sized.
200
Is the moon a planet, star, or satellite?
The moon is a natural satellite.
200
What is absolute brightness? What two things determine it?
Absolute brightness is how actually bright a star is based on its temperature and size.
300
Which is hotter? A white star or a red star?
A white star is hotter than a red star.
300
Which is greater: The Sun or the Milky Way?
The Milky Way is greater in size than the Sun.
300
What is the outer glow layer of the sun called?
This is called the corona.
300
How was the moon formed?
When Earth was a baby, another baby planet crashed into it. That baby planet could not get big enough to stay it's own planet, it was in Earth's gravity and eventually formed the moon.
300
Why can we see the Sun during the day? What happened to the other stars?
The sun has the greatest apparent brightness to us on Earth because it is closest. The other stars are still there, but the Sun's light is too bright for us to see them.
400
Where are stars formed?
Stars are formed in a nebula.
400
Arcturus has a size of 10 million, Sirius has a size of 1.5 million, which is greater?
Arcturus is greater in size than Sirius.
400
What are solar flares? How can they affect the Earth?
Solar flares are when bursts of energy come from the Sun to Earth. It can cause electricity problems, like blackouts.
400
Why can we see the moon during the day sometimes? Can you draw me a picture?
In its orbit, the moon can sometimes appear during the day and night as long as it is in the right spot.
400
Star A and Star B are both the same distance away from Earth. Star A has an absolute brightness of 4.7 and Star B has an absolute brightness of 2.4, which star is brighter?
Star A is brighter, it has a greater absolute brightness. We don't need distance to determine absolute brightness.
500
What are the two gases that stars are made up of?
Hydrogen and Helium.
500
Which is greater: The Earth or the Stars in the sky? Tell me why.
The Stars are greater in size than the Earth. Even though they are far away and seem to be really small, they are actually giants compared to the Earth. We just are really far away from them.
500
Why do we experience Night and Day?
We experience night and day as Earth rotates on its axis and orbits around the sun. As Earth rotates, half of the Earth experiences Day, the other experiences Night.
500
Is the moon a star? Tell me why or why not.
The moon is not a star because it does not produce its own light, it only reflects the light from the sun.
500
Star A and Star B have the same apparent brightness. But NASA tells us Star B is 3 times bigger, how can this be?
Star B is greater in size than Star A, but is further away from Star A. The distance to both stars is different, but their brightness looks the same!
