^^You are correct. The term is Red giant, They now say the earth may make it though the biggest of the expansion. I think the result would be a neutron star though, as only the bigger stars go, "super" nova in the first place. A star the size of our sun (medium star) would only go nova. There is another level called "hyper" nova. The bigger the star the bigger the nova and surprisingly the shorter the life of the star. This will all happen 400 billion years from now. By then we will live on Triton though...

Sorry for getting long winded, but what you said impressed me