Name: 

The edge of the observable universe is approximately

Two kinds of information are needed about many galaxies to establish that the universe is expanding.  They are

Which element signals that the nuclear fusion in a giant star has ended and the star is about to die?

A telescope has a 1000 mm focal length and a 100 mm eyepiece; calculate its magnification.

Kepler’s second law says that “a line connecting the sun and a planet sweeps out equal areas in equal times.”  What does this imply about the speed of a planet in its orbit?

Kepler’s Third Law says .  In this equation, P is the orbital period.  What is a?

Which stars have the smallest parallax shift?

Given that the moon’s gravity causes the majority of the tides in the oceans, during what time of day could you expect to see a low tide when the moon is at 3rd quarter?

According to Einstein, the reason you can’t go faster than light is

In the diagram above, a moving source of a light wave is emitting signals as shown. In which position would an observer see longer wavelengths?

Roughly how many days is it from third quarter moon to the next consecutive new moon?

A hypothesis, in order to be classified as “scientific,”  must be

During a neap tide, the sun’s and moon’s pulls on the earth are at right angles to each other.  What is a possible phase of the moon during a neap tide?

One of the “mysteries” of the solar system had to do with the speed the planets appear to move against the background constellations.  The ancients put the planets in “speed” order because they believed that faster planets were closer to the earth.  Later, Copernicus used a different order. Which of the following shows the order of the planets in the solar system, from the center out, using Copernicus’ order?

In general, which kind of telescope will yield the brightest image?

The picture shown above is most likely a

The primary cause of refraction in lenses is

Neon lights have which kind of spectra?

What feature of a star’s spectrogram will tell you how hot it is?

Which of the following cannot be used to infer a star’s mass?

Which law of nature tells us how hot stars are according to their color?

Pitch is to sound as __________ is to light.

The variable that completely governs how a star lives and dies is

The zenith is how many degrees away from the horizon?

Consider the  stars indicated on the HR diagram.  Which star is most like the sun?

Which of the following is not a piece of evidence in support of the Big Bang Theory?

In the equation the fact that c stands for the speed of light means

Mazatlan, Mexico is at latitude 23 North.  How far is the north star from the zenith in Mazatlan? 

Which of the following is not needed to DRAW an ellipse?

Approximately what time will Orion be due south on December 25?  Use your planisphere to find out. Pick the closest answer.

In the Hubble classification scheme, what does the category SBc mean?

An extrasolar planet was discovered around star HD102117.  Through its “Doppler Wobble” we discovered that the planet has an orbital period of 20 days.  (This is in fact a real planet.) How many days will it be from when the star it orbits will appear to be redshifted until it appears to be blueshifted, then cycle back to redshifted again?

Examine the light curve shown above.  At which point does the companion first begin to cover up the primary star?

What is a “wiki”?

At the center of every AGN you will find a(n)

According to Kepler’s First Law, a planet orbits a sun in an ellipse and the sun is at one focus of the  ellipse.  What is in the other focus?

The simplest explanation of the retrograde loop was made by Copernicus, who explained it happened because

Which of the following ellipses has the least eccentricity?

The constellation in the picture above is

Which of the following was invented to solve the problem of galaxy rotation curves not matching scientists’ expectations?

Explain how astronomers use brightness, color, and position of stars to infer what we know about them.