Astronomy Unit 3 Test Review

Front

What is the declination in celestial coordinates?

Back

Declination is the angle between an object in the sky and the celestial equator, measured in degrees north or south.

Front

What is the significance of the North Celestial Pole?

Back

The North Celestial Pole is the point in the sky that is directly above Earth's North Pole, and it is where the North Star (Polaris) is located.

Front

How many official constellations are recognized today?

Back

There are 88 officially recognized constellations.

Front

What is Polaris and why is it important in astronomy?

Back

Polaris, also known as the North Star, is important because it is located nearly at the North Celestial Pole, making it a key reference point for navigation.

Front

What is the celestial sphere?

Back

The celestial sphere is an imaginary sphere surrounding Earth, onto which all celestial bodies can be projected.

Front

How does the position of constellations change with seasons?

Back

Constellations appear to change position in the sky with the seasons due to Earth's orbit around the Sun.

Tags

NGSS.MS-ESS1-1

Front

What is the difference between right ascension and declination?

Back

Right ascension is the celestial equivalent of longitude, while declination is the equivalent of latitude.

Front

What is the role of the celestial equator?

Back

The celestial equator is an imaginary line that divides the celestial sphere into the northern and southern celestial hemispheres.

Front

How can you locate Polaris in the night sky?

Back

Polaris can be located by finding the Big Dipper constellation and following the line created by the two stars at the end of the 'bowl' of the dipper.

Front

What is the relationship between the North Celestial Pole and the Earth's rotation?

Back

The North Celestial Pole remains relatively fixed in the sky as Earth rotates, making it a stable point for navigation.