Intro
Stars
Galaxies
Solar System
Miscellaneous
100
Study of the origin, structure, evolution, and future of the universe
What is cosmology?
100
Used to measure how far away a star is based on its movement in the background of stars.
What is parallax?
100
Shape of E7 galaxy
What is very elliptical?
100
Theory of the formation of the solar system
What is the nebular theory?
100
Apparent westward motion of planets with respect to stars
What is retrograde motion?
200
Distance from Earth to the Sun
What is 1 AU (astronomical unit)?
200
A hotter star would have this type of wavelength in comparison to a colder star.
What is a shorter wavelength?
200
Quality of galaxy clusters that describes the number of galaxies of a certain brightness contained within them.
What is richness?
200
Two differences between terrestrial and jovian planets
What are density, size, # of moons, thickness of atmosphere?
200
"Morning star," greenhouse planet
What is Venus?
300
Theory that universe has always been the same
What is Steady State?
300
Type of spectrum that shows what elements are in a star.
What is an emission spectrum?
300
Where young stars are located in the Milky Way
What is in the arms?
300
Apparent path of sun around Earth in celestial sphere
What is the ecliptic?
300
The red planet's atmosphere is mainly this gas.
What is carbon dioxide?
400
Model of the universe that states the universe will collapse and expand repeatedly
What is the oscillating model?
400
The order of spectral classes from hottest to coldest.
What is O B A F G K M ?
400
Two variables that are proportional according to Hubble's law
What are a galaxy's velocity and distance from us?
400
Velocity of Earth at aphelion versus perihelion?
What is slower? (Kepler's 2nd Law of Planetary Motion)
400
3 parts of a comet
What are the head (nucleus), coma, and tail?
500
One rotation of the earth with the stars as a reference
What is a sidereal day?
500
Two forces that play out over a star's life cycle.
What are gravity (inward) and gas pressure (outward)?
500
3 celestial objects that may be the same thing according to the Unified Model
What are quasars, blazars, radio galaxies, or infrared galaxies?
500
The most influential variable affecting gravitational force according to Newton's Law of Universal Gravitation [F = (G*m1*m2)/d^2]
What is distance between the 2 objects?
500
3 consecutive names for solid particles that eventually enter Earth's atmosphere and hit Earth's surface (in order)?
What is meteroid, meteor, meteorite?
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