CCI02.03.01.- Star Clusters: Crash Course Astronomy

Beschreibung

https://www.youtube.com/watch?v=an4rgJ3O21A&list=PL8dPuuaLjXtPAJr1ysd5yGIyiSFuh0mIL&index=35
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Zusammenfassung der Ressource

Frage 1

Frage
About the orbit of stars, it is true that
Antworten
  • Their orbits are all in the same plane
  • Their orbits are always around the biggest star
  • None of them

Frage 2

Frage
How can we know the age of a star cluster?
Antworten
  • Observing its color
  • Observing its size
  • Observing the number of stars

Frage 3

Frage
In a globular cluster, what is the name of the part in which appears dispersed stars?
Antworten
  • Core
  • Halo
  • None of them

Frage 4

Frage
How do we know globular are older than the other?
Antworten
  • It is suppose they were the first bodies to form
  • Their biggest stars are smaller than the Sun
  • None of them

Frage 5

Frage
Why in globulars is less probable to find planets?
Antworten
  • They do not contain heavy metals
  • They are very package
  • Both are correct
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