Alcor and Mizar: A Stellar Exploration

What is the relationship between Alcor and Mizar in the Big Dipper?

• They are located in the Orion constellation.

• They are the brightest stars in the sky.

• They are a pair of double stars.

• They are part of the Little Dipper.

Why might Alcor and Mizar appear as a single star in some photographs?

• Long exposure photographs cause stars to blend together.

• They are not visible to the naked eye.

• They are too far apart to be seen together.

• The exposure time of the photograph is too short.

What is the significance of the Horse and Rider star?

• It is a single star in the Orion constellation.

• It is a part of the Little Dipper.

• It is an asterism formed by Alcor and Mizar.

• It is the brightest star in the sky.

How many stars make up the Mizar system?

• Five

• Four

• Three

• Two

What type of star system is Alcor?

• Quadruple star system

• Triple star system

• Binary star system

• Single star system

Which star is brighter, Alcor or Mizar?

• Mizar

• Alcor

• Neither is visible to the naked eye

• Both are equally bright

What is a key difference between Alcor and Mizar?

• Alcor is a quadruple system, Mizar is binary.

• Mizar is a quadruple system, Alcor is binary.

• Both are single star systems.

• Both are part of the Little Dipper.

What is the Ursa Major moving group?

• A group of stars moving together through space.

• A constellation in the southern hemisphere.

• A single star in the Big Dipper.

• A cluster of galaxies.

How will the Big Dipper change in 50,000 years?

• Its star pattern will change due to star motion.

• It will remain the same.

• It will become part of the Little Dipper.

• It will disappear completely.

What was the historical use of Alcor and Mizar?

• As a calendar system.

• To navigate the seas.

• As a test of visual acuity.

• To predict weather patterns.