What is a giant star?
Q: What is a giant star?
A: A giant star is a star that is much larger in radius and luminosity compared to a main-sequence star of the same surface temperature.
Q: How big can giant stars be compared to the Sun?
A: Giant stars can be up to a few hundred times the diameter of the Sun.
Q: How bright can giant stars be compared to the Sun?
A: Giant stars can be between 10 and a few thousand times brighter than the Sun.
Q: Do giant stars last longer than most main sequence stars?
A: No, giant stars don't last as long as most main-sequence stars.
Q: What are supergiants and hypergiants?
A: Stars that are still more luminous than giants are referred to as supergiants and hypergiants.
Q: Can a hot, luminous main-sequence star be referred to as a giant?
A: Yes, a hot, luminous main-sequence star may also be referred to as a giant.
Q: What are some sub-divisions of giant class stars?
A: Some sub-divisions of giant class stars are sub-giants, bright giants, red giants, yellow giants, and blue giants.
