Sciences intermediate test

 

1. What are constellations?

 

• An agreement as they help to identify the position of a star in the sky
• A group of stars sufficient to form an easily recognizable structure
• They are a group of stars that give rise to "characters" or "mythical creatures"

 

2. The International Astronomical Union has been able to map the areas of the sky recognizing:

• about 88 official constellations
• about 44 official constellations
• about 33 official constellations

 

3. The constellations visible to the northern latitude owe their name mainly:

•  figures related to inventions in the Age of  Enlightenment
•  mythological figures of the tradition of Ancient Greece
•  figures related to human life

 

4. What is the mass that the stars have when they  stay longer in the main sequence?

• smaller than the Sun
• equal than the Sun
• greater than the Sun

 

5. The constellations, according to a historical criterion, are classified as:

• 18 northern constellations
• 34 equatorial constellations
• 36 southern constellations