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 miles are in one lightyear?
6 trillion
What is the the luminosity of the Sun?
1
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 Giant 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
Barnard's Star is dim and around 3,500 degrees. 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 are the 3 theories behind how the universe started?
1. Oscillating (pulsating)
2. Steady State (continuous creation)
3. Big Bang
Name the 7 subcategories of the electromagnetic spectrum from longest to shortest
Radio, Micro, Infared, Light, Ultraviolet, X-Ray, Gamma
What is the most unusual color for Supergiants?
Blue/Blue-White
What is another name for the gas giants?
Jovian
What is a dirunal star?
What are two pieces of evidence that supports the Universe is expanding?
1. Background radiation
2. Red shift
Approximately how many Earth's could fit in the sun?
1,000,000