Question 1

True or false: Gliese 667 C is visible to the naked eye from Earth.

Accepted Answer

False. It's far too dim (magnitude ~10) to see without a telescope; even its brighter companions are barely visible.

Question 2

True or false: Gliese 667 C is brighter and hotter than our Sun.

Accepted Answer

False. It's a red dwarf (M-class) that is much dimmer and cooler than the Sun—only about 1% of our Sun's luminosity.

Question 3

True or false: Gliese 667 C is located over 100 light-years away from Earth.

Accepted Answer

False. It's actually about 23.6 light-years away, making it a relatively close neighbor in our galaxy.

Question 4

True or false: Tidal locking likely causes one side of Gliese 667 C's habitable-zone planets to face the star permanently.

Accepted Answer

True. Due to close orbits around a dim red dwarf, these planets are probably tidally locked, creating a stark day-night divide.

Question 5

True or false: The planets around Gliese 667 C were discovered using the direct imaging method.

Accepted Answer

False. They were detected via radial velocity (wobble) method, not direct imaging, as the star's glare hides them.

Question 6

True or false: Gliese 667 C is part of a triple star system, making its sunsets potentially spectacular.

Accepted Answer

True. It orbits the M-dwarf Gliese 667 C, which is itself in a triple system with two other stars (Gliese 667 A and B).

Question 7

True or false: Two of Gliese 667 C's planets are located squarely within its habitable zone.

Accepted Answer

True. Gliese 667 Cc and Ce are both considered potentially habitable super-Earths, a rare multiple-HZ system.

Question 8

True or false: Gliese 667 C has at least seven confirmed planets orbiting it.

Accepted Answer

True. Current data supports up to seven planets, with two in the habitable zone—a surprisingly rich system for an M-dwarf.

Gliese 667 C Trivia Questions