The Night Sky. A constellation is a grouping of stars that has a name and forms a pattern . . The word constellation can also mean the region of the sky surrounding one of those patterns of stars .
Polaris is also called the North Star. It appears to be above Earth’s North Pole. If you face Polaris, you are facing north. To your right is east. To your left is west. And behind you is south.
The star pattern known as the Big Dipper is actually an asterism, meaning it is a grouping of stars that is widely known and recognized, but is not an official constellation.
The other planets in our solar system are much closer to Earth than the stars are. They move around the sun like Earth does.
Their relative positions never appear to change because they are so far away from Earth.
How do you think sailors on the ocean long ago used star patterns?
What do modern sailors use for this purpose?
a. A pattern of planets
b. A pattern of stars
c. A star
d. A scientist who studies objects in space.
a. They form constellations.
b. They are found just above the North Pole
c. They do not move across the night sky.
d. They move across the night sky.