No, there are many other red giant stars in the Universe. Betelgeuse and Aldebaran are well-known red giants because they are bright and easily visible from Earth, but there are numerous others that exist both within our own galaxy and beyond.
Betelgeuse is around 10 times greater in diameter than Rigel.
With a radius of over 1000 times our sun, the volume of Betelgeuse is over a billion times our sun. So, our sun could fit into Betelgeuse over a billion times.
300,000,000,000,000 times brighter than the sun
The radius of Betelgeuse is over 1000 times the radius of the sun, so the volume will be over a billion times. So, you could fit over a billion suns in Betelgeuse.
No, there are many other red giant stars in the Universe. Betelgeuse and Aldebaran are well-known red giants because they are bright and easily visible from Earth, but there are numerous others that exist both within our own galaxy and beyond.
Betelgeuse is around 10 times greater in diameter than Rigel.
With a radius of over 1000 times our sun, the volume of Betelgeuse is over a billion times our sun. So, our sun could fit into Betelgeuse over a billion times.
2 magnitudes brighter means it's about 2.512 x 2.512 times brighter. So that's about 6.31 times brighter.
300,000,000,000,000 times brighter than the sun
It is four times as brighter. It is four times as brighter.
We can be quite certain that it has never done that.
The radius of Betelgeuse is over 1000 times the radius of the sun, so the volume will be over a billion times. So, you could fit over a billion suns in Betelgeuse.
Betelgeuse is approximately 900 times larger in diameter than the sun, about 1.5 billion kilometers.
The size of Betelgeuse is variable (it pulsates); plus, there are different estimates. But its diameter is approximately 900 times that of our Sun, which in turn is roughly 100 times the diameter of Earth (actually 109, but the data don't justify a very exact calculation), so Betelgeuse has roughly 900 x 100 = 90,000 times the DIAMETER of Earth; the ratio of volumes is that same number, cubed, or (after some rounding) about 700,000,000,000,000 times as much.
Oh, what a lovely question! Aldebaran is a giant star, much larger than our Sun. In fact, you could fit about 44 million Suns inside Aldebaran. Just imagine all that space and brightness, isn't it amazing? Keep exploring the wonders of the universe, my friend.
The word "Betelgeuse" has 3 syllables in it Be-tel-geuse.