In the Heliocentric Model

The measured amount of "elongation" in the shape of a planet's orbit is called

Which planet has the highest eccentricity?

Which planet takes less time to revolve around the Sun than it does to rotate one time on its axis?

The age of the Sun is estimated to be

The Doppler effect applies to light waves as well as sound waves. Astronomers use this to measure the motion of stars and galaxies. In 1929, Edwin Hubble discovered that light from distant galaxies was shifted away from the blue end of the spectrum and towards the red end of the spectrum. Red light has a longer wavelength (and a lower frequency) than blue light. What could Hubble conclude about these galaxies?

A large grouping of stars, planets, gas, and dust in space held together by gravity.

A reaction in which two light nuclei combine to produce a nucleus of heavier mass, resulting in the release of a large amount of energy.

The explosion of a massive star at the end of its life cycle

What Galaxy is Earth located?

As galaxies move away from our galaxy

a shift on the electromagnetic spectrum is noticed. This phenomena is

called _____________.

The Big Bang Theory states that all matter started as a small volume and then...

What do we observe when stars/galaxies are moving away from us?

On the electromagnetic spectrum, Red light

Aside from the Doppler effect, one piece of evidence that supports the theory of the big bang is

The Sun is a ___________ star.

Aldebaran is a ____________

Which planet has the greatest distance between the two foci of its orbit?

Compared to the Sun, Spica is .......

A giant structure that contains dust, gasses, and hundreds of billions of stars.

The force that governs the motion of our solar system.

A star with a temperature of 15,000 K and a luminosity of 0.01 times dimmer than the Sun would be a ____________.

The final stage of the star Sirius is going to be

The immediate next stage of the Sun's life after it moves on from the main sequence is

A large cloud of gas and dust in interstellar space where stars are born is

Which star is the coolest?

An orbit with the eccentricity of 0.910 would have a

If the distance between foci is very low, the eccentricity will be

When a planet orbits the Sun, one of the foci of the elliptical orbit is _______________.

What effect does increasing the distance between an ellipse’s foci have on the shape of an ellipse?

Where will an object move at the greatest speed as it orbits the sun?

Which position would the Sun look the largest to someone standing on Earth

This planet has the longest period of rotation.

This planet is approximately half the size of Earth.

This planet has the most circular orbit.

Which planet has a mass that is over 300 times that of Earth's mass

Saturn is how many millions of km away from the sun?

Click the image to enlarge and select the correct answer below

Which planets orbit most eccentric?

Compared to the Terrestrial Planets, the Jovian planets

Nuclear Fusion