Answer:
The main difference between a red giant and a super red giant lies in their size and luminosity. Both are advanced stages in the life cycle of a star, but super red giants are much larger and more luminous than regular red giants.
Size:
Red Giants: Red giants are large, evolved stars that have exhausted their core hydrogen fuel. They have expanded and cooled, causing their outer layers to become much larger than their original size. Red giants typically have radii that are tens to hundreds of times larger than our sun.
Super Red Giants: Super red giants are even larger than regular red giants. They are massive stars that have undergone significant expansion during their late stages of evolution. Super red giants can have radii that are hundreds to thousands of times larger than our sun, making them some of the largest known stars in the universe.
Luminosity:
Red Giants: Red giants are already more luminous than their earlier main-sequence phase due to their increased size, but their luminosity is not as high as that of super red giants.
Super Red Giants: Super red giants are incredibly luminous and shine with an immense amount of energy. Their high luminosity is a result of their large size and high temperatures in their outer layers.
In summary, both red giants and super red giants are evolved stars in the later stages of their lives. The main difference is that super red giants are much larger and more luminous than regular red giants, making them some of the most massive and brightest stars in the universe.
Step-by-step explanation: