Astronomy - Midterms

How many hours of Right Ascension (RA) are there?

24 Hours

The Celestial Sphere is divided into 88 sections known as?

Constellations

If standing on the Equator where is the South Celestial Pole?

On the Horizon

Will a star with a Declination of zero degrees (0°) be Circumpolar for Southern California?

No

What can we say about a planet when it is at its Closest Point to the Sun and its Orbit?

It is moving at its Fastest

What evidence helped prove the Heliocentric Model was correct?

The Phases of Venus

What major Technology allowed Galileo to observe the Phases of Venus?

A Telescope

Retrograde Motion of the planets is caused partly by?

The different Orbital Speeds of the planets

What Orbit Period takes the Shortest amount of time?

The Moon revolving around Earth

Why do we only see One side of the Moon?

The Orbital Period and Rotation Period are the Same/Equal

If the Moon Rises at 6 p.m., then what Phase is it in?

The Full Moon Phase

If you look up tonight and only see the Left Half of the Moon, what Phase is it in?

The Third (3rd) Quarter

Which kind of Light is able to pass through the Atmosphere?

Visible Light

A hotter object will give off Light, as well as Wavelength Light?

More, and Shorter

A small Diameter Telescope will result in?

Worse Resolving Power

A shorter Focal Length Eyepiece will result in?

Higher Magnification

If the Sun had lower Luminosity, we would expect that?

The Terrestrial Planets would have more Silicate Material

The most common Element in the Atmosphere is?

Nitrogen

The most accepted Theory of the origin of the Moon includes?

A Large Planet/Object hit Earth which kicked up enough Molten Crust into space

The Moon is mostly made of?

Silicate Rock

Which Terrestrial Planet besides Earth has a natural Satellite (Moon)?

Mars

The two main reasons why Mercury has No Atmosphere is the fact that it is Small and ____?

Has a Weak Magnetic Field

Part of why we think Mars may have lost its Atmosphere is that on the Surface of Mars we see evidence of?

Dried up Riverbeds and Lakes which once had Water

Most of Mars is Cold, during the Summer months the lower Latitudes of Mars can get to 70°f, even with this temperature why wont we still find Liquid Water on Mars?

Not enough Atmosphere Pressure

The Moons of Neptune Orbit?

Outside the Roche Limit

By Volume Jupiter is mostly made of?

Molecular Hydrogen

Differentiation is when?

Heavy Elements Fall to the Core

Has the Earth Differentiated?

Yes

The Ion Tail of a Comet?

Always Points Away from the Sun

If we measure the Periodic Drop in Light from another Star due to an Exoplanet to be about 30 days, what can we say about that Exoplanet?

It Orbits close to its Parent Star

The Theory that Planets Migrated during the early formation of the Solar System, helps explain why ____?

Uranus Orbits on its Side

The Most Common type of Asteroid is?

Made of Carbon Compounds