51 Pegasi b - Dimidium | Exoplanet Song

51 Pegasi B, discovered in 1995 at Oak Province Observatory, is the first exoplanet found orbiting a main sequence star. Known as a 'hot Jupiter', it has a mass nearly half that of Jupiter and is located 50 light years away in the constellation Pegasus. Discovered by Michel Mayor and Didier Queloz, who won a Nobel Prize for their work, 51 Pegasi B is named Domidium. It is much closer to its star than Mercury is to the Sun, resulting in high temperatures. The planet is thought to be tidally locked to its star, similar to how the Moon is to Earth.

Who were the astronomers credited with the discovery of 51 Pegasi B?

• Galileo Galilei and Johannes Kepler

• Edwin Hubble and Stephen Hawking

• Carl Sagan and Neil deGrasse Tyson

• Michel Mayor and Didier Queloz

What is the mass of 51 Pegasi B compared to Jupiter?

• Twice the mass of Jupiter

• Equal to the mass of Jupiter

• Half the mass of Jupiter

• One-third the mass of Jupiter

In which constellation is 51 Pegasi B located?

• Orion

• Pegasus

• Andromeda

• Cassiopeia

Why is 51 Pegasi B considered extremely hot?

• It is a newly formed planet

• It is made of molten lava

• It is very close to its star

• It has a thick atmosphere

What is the orbital speed of 51 Pegasi B?

• 150,000 mph

• 200,000 mph

• 304,000 mph

• 400,000 mph