H-R Diagram
H-R stands for...
Hertzsprung-Russell
What is the largest Planet in the Solar System
Jupiter
What are the only two elements present in a mid-life star for the most part?
Hydrogen and Helium
True/False: The Universe is expanding
True
Approximately how many kilometers are in one lightyear?
9.5 trillion km
What is the the luminosity of the Sun?
1
Which planet is the most eccentric and the closest to the sun?
Mercury
What determines whether a star will form a black hole?
Mass
What is the name of our galaxy and what is it's shape?
How far is the Earth from the Sun?
149.6 million km
What type of star is the oldest?
Dwarfs
Mars and Jupiter
What is a supernova
When a Red Supergiant releases its final energy in a blast of energy
Approximately how old is the universe
13-14 billion years
What is the true shape of the Earth?
Oblate Spheroid or Oblong Oval
Betelgeuse's Star is dim and around 2,000 degrees Kelvin. What color is it.
Red
Which planet has a longer day than year?
Venus
What is the process stars go through that allows them to shine?
Nuclear Fusion
What is one of the 4 theories behind how the universe started?
1. Oscillating (pulsating)
2. Steady State (continuous creation)
3. Big Bang
4. Creation
Do Blue Supergiants have a high luminosity and high temperature? T / F
TRUE
What is the most unusual color for Supergiants?
Blue and Blue-White
What is another name for the gas giants?
Jovian
Give two descriptions for the star Spica.
It is blue, very luminious, and around 20,000 + degrees Kelvin.
Which is headed towards old age and death?
Red Giant
Approximately how many Earth's could fit in the sun?
1,000,000