Crux

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/crux

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How deep is Crux?Jewel Box Cluster (NGC 4755), Coalsack Nebula
2. What is the official designation?Constellation (IAU recognized)
3. What is the cultural depictions?Prominently featured on national flags and in indigenous astronomical traditions
4. What is Crux and why is it called the Southern Cross?Crux is the smallest constellation, shaped like a tiny diamond that looks like a cross. It is called the Southern Cross because it can be seen in the southern part of the sky.
5. How do sailors use Crux to find their way?Sailors watch how Crux rotates around the South Celestial Pole. By seeing this rotation, they can estimate their latitude and direction.

South Celestial Pole: The point in the sky directly above Earth's geographic South Pole, around which stars appear to rotate.
Celestial Navigation: The practice of determining one's position and plotting a course using celestial bodies.
Apparent Magnitude: A measure of how bright a celestial object appears from Earth.