Question 1

True or false: The Triangulum Galaxy is the third-largest member of the Local Group, after Andromeda and the Milky Way.

Accepted Answer

True. It's indeed the third-largest, spanning about 60,000 light-years, far smaller than Andromeda and our galaxy.

Question 2

True or false: Its name comes from its location in the constellation Triangulum, which represents a triangle of stars.

Accepted Answer

False. The constellation is named after the triangle shape, but the galaxy is simply named after the constellation, not a direct shape reference.

Question 3

True or false: It has more star-forming nebulae than the Andromeda Galaxy, relative to its size.

Accepted Answer

True. Triangulum is incredibly rich in HII regions, like NGC 604, making it a star-formation powerhouse per unit area.

Question 4

True or false: Astronomers once thought Triangulum was a nebula within the Milky Way until the 1920s.

Accepted Answer

True. Before Edwin Hubble's work, it was cataloged as a nebula (M33) and only later confirmed as a separate galaxy.

Question 5

True or false: Triangulum contains a supermassive black hole with a mass over a million times that of the Sun.

Accepted Answer

False. No supermassive black hole has been confirmed; its core lacks one, unlike most large galaxies.

Question 6

True or false: The Triangulum Galaxy is the most distant object visible to the naked eye from Earth.

Accepted Answer

True. At 2.7 million light-years away, it's the farthest permanent object visible without a telescope under dark skies.

Question 7

True or false: Triangulum rotates in the opposite direction of most other spiral galaxies.

Accepted Answer

False. No, it rotates in the same direction as typical spiral galaxies; no evidence of retrograde rotation exists.

Question 8

True or false: Triangulum is actually a satellite galaxy of the Andromeda Galaxy.

Accepted Answer

False. It's not gravitationally bound to Andromeda; it's a separate member of the Local Group, though they may interact in the future.

Triangulum Galaxy Trivia Questions