Astronomy Chapter 17

On the H-R diagram, red supergiants like Betelguese lie?

On the H-R diagram, the Sun lies?

For a star of 10 solar masses, its main sequence life span will be?

In general, the narrower the spectral line of a star?

In a spectroscopic binary, if a pair shows a combined set of lines tonight, but a maximum split two nights later, its orbital period must be?

Compared to the size of the Sun, between what range of sizes are most stars found?

Star A and star B both have an apparent magnitude of 7.0, but star A is at a distance of 15 pc and star B is at a distance of 30 pc. Which statement below is correct?

If a star is found by spectroscopic observations to be about 500 parsecs distant, its parallax is

What is proper motion?

A nearby star has a parallax of 0.2 arc seconds. What is its distance?

In the H-R diagram, the bright blue-white stars that dominate the naked eye sky lie to the?

The star's color index is a quick way of determining its?

The Hertzsprung-Russell Diagram plots ________ against the spectral type or temperature?

How might the most common occurring stars be described, based on our stellar neighborhood?

Star A is a main sequence star of spectral type G5 and star B is a red giant of spectral type K2. Which statement below is correct?

In order to turn a star's proper motion into its space velocity, we must also know?

Star A and star B both have an absolute magnitude of 2.0, but star A is at a distance of 50 pc and star B is at a distance of 20 pc. Which statement below is correct?

What is the typical main sequence lifetime of a B-type star?

Which of the following is the most common type of star?

Star A is a main sequence star of spectral type F2 and star B is a white dwarf of spectral type B4. Which statement below is correct?

At the distance of Jupiter (6 times further away from the Sun than Earth) the amount of sunlight received per square centimeter different by what factor?

What is the typical main sequence lifetime of a M-type star?

Star A and star B both have an absolute magnitude of 2.0, but star A has an apparent magnitude of 5.0 and star B has an apparent magnitude of 7.0. Which statement below is correct?

In what range of masses are most stars found?

What physical property of a star does the spectral type measure?

What is the absolute magnitude of our Sun?

Which type of binary can have their sizes measured directly by photometry?

Star A has an absolute magnitude of 2.5 and star B has an apparent magnitude of 2.5, but star A is a main sequence star and star B is a red giant. Which statement below is correct?

On the H-R diagram, white dwarfs lie Sirius B and Procyon B lie?

The absolute magnitude of a star is its brightness as seen from a distance of?

Star A and star B both have an apparent magnitude of 4.0, but star A has an absolute magnitude of 1.0 and star B has an absolute magnitude of 7.0. Which statement below is correct?

The most famous G type star is?

Hipparcos' observations have given us good data on stars out to about?

What is the typical main sequence lifetime of a G-type star?

Procyon lies about 13 light years distant, thus its parallax is about?

Upon what data do measurements of sizes of eclipsing binaries depend?

If a star has a parallax of 0.05", then its distance in light years is about?

If a star appears to move back and forth relative to other stars over a six-month period, this motion is due to the star's?

What are the two most important intrinsic properties used to classify stars?

Stars that have masses similar to the Sun's, and sizes similar to the Earth are?

What is the single most important characteristic in determining the course of a star's evolution?

In comparing first magnitude Deneb with second magnitude Polaris, we find that?

In a spectroscopic binary system, the star showing the larger blue shift is?

If a star appears to move relative to other stars over a one-year period, this motion is due to the star's?