In a diagram showing the solar system as heliocentric, what is located at the center? Copernicus came up with this model and is the one we live by today.

One of the measurements used to locate objects in the sky is compass direction. The compass direction measured clockwise from north is called

Early astronomers used an astrolabe to measure the position of stars

Coordinates that may be used to determine distance in space include

What is at the middle of a Geocentric system?

Is the apparent backward motion of a planet caused by its being lapped by another planet

The Red Shift that scientists observe from galaxies means that the galaxies are moving...

This man supported the heliocentric model, discovered moons orbiting Jupiter, among his many other talents....

Planetary orbits are...

A refracting telescope uses _______ to focus light.

A star moving away from the Earth would appear to be...

A ___ is used in astronomy to break down light like a prism.

An ambulance is driving towards you as you stand on the sidewalk. What happens to the pitch of the siren as it comes towards you?

You are standing on the side of the road when a police car races past you with its siren on. After the police car passes you, what happens to the pitch of the siren?

Who is the inventor of the telescope?

The spectroscope is a powerful tool used by astronomers to infer the nature of matter.

Spectral lines that are observed to be narrower & blue-shifted indicates that an object is