The Universe
Galaxies
Stars
Moons
Measurements
100
When did the universe begin?
What is 13.7 billion years ago
100
What kind of galaxy is the Milky Way?
What is a barred Spiral.
100
How many days does it take the Sun to rotate.
What is 24 days.
100
Name all 8 planets in order from closest to the sun to farthest.
What is Mercury, Venus, Earth Mars, Jupiter, Saturn, Uranus, and Neptune.
100
What is the diameter of the universe in light years?
What is 75000 light years across
200
Everything we know and see in our universe is known as what?
What is the observable universe.
200
What is the range that galaxies are classified in according to apparent shape?
What is E0- E7
200
What are Cepheid variable Stars?
What is a star that has a period from 1-60 days and are classified as giant and super giant stars.
200
What well known moon that circles Saturn has an atmosphere?
What is Titan (also the moon that does not have a surface)
200
What is the unit all distances in our solar system is measured by?
What is AU (Astronomical Units)
300
If a galaxy is twice as far away from earth as another galaxy, how much faster would it be moving away?
What is twice as fast.
300
What galaxies contain little to know gas, dust and luminous stars. Hint: they are known as the nursing home for stars.
What is Elliptical Galaxies.
300
What is an RR Lyrae star?
What is has a period of a half a day. They are known to be small and pulsate.
300
What is a place that scientist believe to contain life and why is that? Hint:It is a moon of Jupiter.
What is Europa because the tidal heating keeps the ocean liquid under the ice.
300
What units are the planet densities measured in?
What is gm/cm^3 (grams per cubic centimeter)
400
What shape does most evidence indactes the universe is in?
What is a flat universe. It is expanding slowly and will eventually stop after infinite time.
400
What type of galaxy can be mistaken for globular clusters?
What is Dwarf Ellipticals.
400
What stars are good standard candles for distance indicators?
What is Cepheids and Type 1a supernovas.
400
What is the largest moon.
What is Ganymede
400
what is the Hubble Law?
What is H= 63 km/sec-MPC. The most basic unit is seconds.
500
Name all three different types of universes that were measured and suggested.
What is Closed universe, Flat universe, and Open universe.
500
What are the Magellanic Clouds?
What is an Irregular galaxy that is nearby.
500
Stars move through space, and over periods of a few years these motions can be detected in small shifts, what is that shift known as?
What is proper motions.
500
What one moon of Jupiter is known not to contain any water?
What is Io.
500
What was the critical density number to start the big bang?
What is 9x10^-30 g/cm^3
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