Rigel - Stars of the Universe Song

The video introduces Rigel, a blue-white supergiant star in the Orion constellation. It covers Rigel's discovery by William Herschel in 1781, its characteristics such as age, lifecycle, and classification. The video also details Rigel's physical properties, including its luminosity, mass, radius, and temperature. Finally, it provides guidance on how to locate Rigel in the night sky, emphasizing its visibility and position in Orion.

Who discovered Rigel and in what year?

• Carl Sagan in 1975

• Edwin Hubble in 1923

• William Herschel in 1781

• Galileo Galilei in 1610

What is the expected end of Rigel's life cycle?

• It will remain a blue super giant

• It will become a red giant

• It will turn into a white dwarf

• It will explode as a type 2 supernova

How can Rigel be located in the night sky?

• By finding the Big Dipper

• By locating the North Star

• By looking for the Hunter's leg in Orion

• By identifying the Southern Cross

How much more luminous is Rigel compared to the Sun?

• 10,000 to 50,000 times

• 61,500 to 363,000 times

• 100,000 to 200,000 times

• 500,000 to 1,000,000 times

What is the surface temperature of Rigel in Kelvin?

• 15,000 K

• 12,100 K

• 10,000 K

• 5,800 K