Question 1

True or false: 61 Cygni is visible to the naked eye from suburban skies under good conditions.

Accepted Answer

False. Its apparent magnitude of about 5.2 makes it faintly visible only from very dark rural skies; it's easily lost in suburban light pollution.

Question 2

True or false: 61 Cygni was the first star to have its distance measured via parallax.

Accepted Answer

True. In 1838, Friedrich Bessel used parallax to measure 61 Cygni's distance, making it the first star (besides the Sun) with a known distance.

Question 3

True or false: 61 Cygni has a high proper motion, moving across the sky faster than most naked-eye stars.

Accepted Answer

True. Its rapid proper motion (about 5.2 arcseconds per year) earned it the nickname 'the Flying Star' and made it famous for early astrometry.

Question 4

True or false: 61 Cygni was the first star (other than the Sun) to have its distance measured by parallax.

Accepted Answer

True. In 1838, Friedrich Bessel successfully measured its parallax, making 61 Cygni the first star beyond the Sun with a known distance.

Question 5

True or false: 61 Cygni's two stars are so close that they exchange material and erupt as novae every few centuries.

Accepted Answer

False. They are a wide binary (about 85 AU apart) and do not exchange mass. No novae have been observed from this system.

Question 6

True or false: In the 1940s, 61 Cygni was suspected to have a planet based on wobbles in its motion.

Accepted Answer

True. Early astrometric data suggested a planetary companion, but later observations using better instruments disproved it—a classic false positive.

Question 7

True or false: 61 Cygni will make its closest approach to the Sun in about 20,000 years, passing within 9 light-years.

Accepted Answer

True. Due to its high proper motion and radial velocity, it will reach perihelion around 20,000 AD at about 9 light-years, still a safe distance.

Question 8

True or false: 61 Cygni is actually a triple star system, consisting of two K-type stars and a white dwarf companion.

Accepted Answer

False. 61 Cygni is a binary system of two K-type main-sequence stars (A and B). No white dwarf companion has been confirmed; a suspected third star was disproven.

61 Cygni Trivia Questions