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No, there are lots of red giant stars, too many to count. Betelgeuse and Aldebaran just happen to be close to us and bright in the sky, so we see them easily.
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.
Betelgeuse is around 10 times greater in diameter than Rigel.
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.
300,000,000,000,000 times brighter than the sun
No, there are lots of red giant stars, too many to count. Betelgeuse and Aldebaran just happen to be close to us and bright in the sky, so we see them easily.
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.
Betelgeuse is around 10 times greater in diameter than Rigel.
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.
300,000,000,000,000 times brighter than the sun
2 magnitudes brighter means it's about 2.512 x 2.512 times brighter. So that's about 6.31 times brighter.
It is four times as brighter. It is four times as brighter.
We can be quite certain that it has never done that.
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.
86,350
That depends upon many things, firstly the type of star, Aldebaran is much larger than our own Sun, as is Arcturus, both of which are K type stars, they have lower surface temperatures, but much higher core temperatures due to the extra pressure that gravity exerts upon them. But Betelgeuse would swallow up the Earth if it was in orbit around it.
The word "Betelgeuse" has 3 syllables in it Be-tel-geuse.