Kepler's Laws
All planets orbit the sun in this shape.
What is an ellipse?
The first stage in all star's life cycles.
What is a nebula?
The coolest temperature color found on the right side of the HR Diagram.
What is red?
The first element to form in the universe, 1 second after the big bang.
What is hydrogen?
The four outer planets.
What are Jovian planets?
The distance from the center of the ellipse to a foci divided by the radius of the ellipse allows me to calculate ___________.
What is eccentricity?
A cloud of gas and dust left over after the death of a low mass star.
What is a planetary nebula?
The variable found on the Y-Axis of the HR diagram, measured in Lumens.
What is Luminosity?
As recessional velocity increases, light waves are stretched. This is called
What is red shift?
The hottest planet in the solar system.
What is Venus?
The location of a planet when it is moving at it's slowest speed in orbit.
What is aphelion?
The stage of a star's life that immediately follows fusion of hydrogen in the core of the of a protostar.
What is a main sequence star?
Most stars on the HR diagram are found in this grouping on the HR Diagram.
What is main sequence?
Radiation found throughout the universe which shows that the universe is cooling as it expands.
What is CMBR?
The planet in the solar system with the most moons due to its mass.
What is Jupiter?
The two points that determine eccentricity of an ellipse are called this.
What are foci?
The TWO possible outcomes of a high mass star after it has died.
What are a black hole and neutron star?
As luminosity increases, the mass of the star _______________.
What is increases?
The four fundamental forces that formed in less than a second after the bag bang.
What are the strong & weak nuclear force, electromagnetic force, and gravity?
Planets that formed by the addition of dense materials located near the center of the protostar.
What are terrestrial planets?
According to Kepler's second law, planets orbit more quickly as they approach a star. This is because stars are more massive than planets which means they possess more of this force.
What is gravity?
The process that occurs in the core of a red giant or red supergiant after all the hydrogen is used.
What is fusion of heavier elements?
The next stage in the life cycle of stars found in the upper right corner of the HR Diagram.
What is supernova?
Object 1 is 23 light years away from the Earth, object 2 is 1,000 light years from Earth, and object 3 is 300 light years from Earth. Which object has the fastest recessional velocity?
What is object 2?
Two Planets: Planet which rotates counter-clockwise & the planet which orbits on its side.
What are Venus and Uranus?