Exam 18: The Universe

The Big Dipper is a(n)

The branch of astronomy that studies the structure and evolution of the entire universe is called ______________.

Brown dwarfs are often described as

What elementary particle has no charge,travels at or near the speed of light,and hardly ever interacts with other particles?

When the absolute magnitudes,or brightnesses,of stars are plotted against their surface temperatures or colors,we obtain a(n)______________ diagram.

The radial distance to the event horizon from the singularity of a black hole is called

A faint white dwarf that temporarily increases in brightness as a consequence of nuclear explosions on its surface is termed

The two types of bright nebulae are emission nebulae and ______________ nebulae.

Celestial latitude is called

The recent modification of the standard Big Bang model is called the ______________ model.

The volume of space over which the ______________ extends is called the heliosphere.

The absolute magnitude of a celestial object is the apparent magnitude it would have if it were placed how far from the Earth?

The three space coordinates that determine a star's position are the

The universe seems to be about how many years old?

The modification of the standard Big Bang theory is known as the

Twelve hours of daytime and twelve hours of nighttime occur at every location on Earth whenever the Sun reaches the

What is the name given to all matter,energy,and space?

The apparent path that the Sun traces annually along the celestial sphere is called the

What is the pseudoscience that contends the planets' positions in the sky at the time of a person's birth affect the individual's personality or future?

Which of the following represents the shortest distance?