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Triangulum Galaxy Trivia Questions

How much do you really know about Triangulum Galaxy? Below are 8 true or false statements. Click each one to reveal the answer and explanation.

1.

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

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Easy
✓ TRUE

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

2.

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

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Easy
✗ FALSE

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

3.

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

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Medium
✓ TRUE

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

4.

Astronomers once thought Triangulum was a nebula within the Milky Way until the 1920s.

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Medium
✓ TRUE

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

5.

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

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Medium
✗ FALSE

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

6.

The Triangulum Galaxy is the most distant object visible to the naked eye from Earth.

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Hard
✓ TRUE

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

7.

Triangulum rotates in the opposite direction of most other spiral galaxies.

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Hard
✗ FALSE

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

8.

Triangulum is actually a satellite galaxy of the Andromeda Galaxy.

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Hard
✗ FALSE

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

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