What Do You Know About Castor?

10 Questions | Total Attempts: 125

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What Do You Know About Castor? - Quiz

Castor is the second brightest star in the night sky. It is believed to be significantly fainter than Beta Geminorum its twin and constitute the constellation gemini together with Pollux.


Questions and Answers
  • 1. 
    The castor star is also known as 
    • A. 

      Beta GeminorumĀ 

    • B. 

      Alpha Geminorum

    • C. 

      Pollux

    • D. 

      Equinox

  • 2. 
    The apparent magnitude of Castor A is 
    • A. 

      1.93

    • B. 

      1.80

    • C. 

      1.70

    • D. 

      1.60

  • 3. 
    Castor was recorded as a double star in 
    • A. 

      1817

    • B. 

      1718

    • C. 

      1809

    • D. 

      1972

  • 4. 
    Castor was recorded as a double star by 
    • A. 

      Edward Luke

    • B. 

      Jean Freud

    • C. 

      Thomas Button

    • D. 

      James Pound

  • 5. 
    The apparent magnitude of Castor B is 
    • A. 

      2.0

    • B. 

      3.0

    • C. 

      4.0

    • D. 

      1.0

  • 6. 
    The third star of the Castor system is how many inches distant from others?
    • A. 

      70 inches

    • B. 

      60 inches

    • C. 

      50 inches

    • D. 

      73 inches

  • 7. 
    The distance between Castor A and B to how many inches in 2017?
    • A. 

      5

    • B. 

      6

    • C. 

      4

    • D. 

      80

  • 8. 
    The Castor is how many light years away from the earth?
    • A. 

      50 light years

    • B. 

      69 light years

    • C. 

      51 light years

    • D. 

      55 light years

  • 9. 
    Castor is an 
    • A. 

      Am star

    • B. 

      Flar star

    • C. 

      Variable star

    • D. 

      By Dra star

  • 10. 
    The name 'Castor' has what origin?
    • A. 

      Arabic

    • B. 

      Korean

    • C. 

      RomanĀ 

    • D. 

      Greek

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