Exam 18: The Universe

The Ulysses space probe of the Sun encountered the planet Jupiter in 1998 and returned to make a second sweep over the Sun's poles in 2000-2001.Determine the time (in seconds and minutes)that it took a radio signal to reach Earth when the space probe was at Jupiter.(Use 778 × 10⁶ km for the distance from the space probe to Earth.The distance varies because Earth and Jupiter are orbiting the Sun.)

If the magnitude difference between one star and another is 7,the stars differ in brightness by a factor of

The celestial equator is

A(n)______________is denser than a neutron star.

The fundamental components in the structure of the universe are the ______________.

The next phase in the life cycle of the Sun will be

The Greek astronomer who assigned the stars to six magnitudes was named ______________.

In a halo around the Milky Way's nuclear bulge lie about 200

Stars lying above the main sequence that are relatively cool but very bright are called

The pseudoscience called ______________ contends that the planets' positions in the sky at the time of a person's birth affect the individual's personality or future.

It is not true that the neutrino

The two major types of nebulae are

The angular measurement in hours,minutes,and seconds from the celestial prime meridian eastward is called _______________.

The letters LMC refer to the galaxy named ______________.

The ______________ is the name given to all matter,energy,and space.

Most cosmologists favor the Big Bang theory over other cosmological theories because of

What type of galaxy is the Milky Way?

The number of ______________ appearing on the Sun varies over an 11-year cycle.

A star of magnitude 3 is how many times brighter than a star of magnitude 5?

Another name for a pulsar is _______________.