ASTRON 59165

subject Type Homework Help
subject Pages 6
subject Words 691
subject Authors Eric Chaisson, Steve McMillan

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page-pf1
Compare and contrast stars on the upper left and lower right of the main sequence.
The ozone layer blocks much of the Sun's ________ radiation.
The spiral arms are made of bright stars belonging to Population ________.
Newton found that gravity varied with the ________ of the distance between the two
bodies pulling on each other.
page-pf2
Like Herbig-Haro objects associated with protostars, the lobes around radio galaxies are
the result of ________ streaming from the active nucleus. Describe their alignment.
Rather than an explosive death, the Sun will likely end its life forming a ________
surrounding a ________.
The huge, dark, almost spherical regions between the superclusters of galaxies are
called ________.
page-pf3
Extra mass dumped on a white dwarf creates a nova, but if dumped on a neutron star, it
creates ________.
In general, the less cratered a moon's surface, the ________ it is.
Name the four principal types of solar-system debris; pair them up in terms of
composition.
page-pf4
The most effective wavelengths to see through the clouds of Venus to the surface are
________.
Where is the newest material in the Earth's crust found?
The separation of red and blue light in single-lens telescopes is called ________
aberration.
How does the interstellar gas change the light of stars passing through it, even if no dust
is also present?
page-pf5
Contrast the sizes and membership of the Local Group and Virgo Cluster.
How can a white dwarf be hotter than our Sun, yet much less luminous?
The lakes of Titan consist of liquid ________.
page-pf6
To what three types of modern survivors can the masses of the protogalactic blobs be
compared?
Distinguish an E0 from an E7 galaxy.
The Sun's tidal pull has slowed Mercury's rotation down to a period ________ that of
its year.

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