Catching a stellar 130 days out of millions if not billions of years is a Big Deal.
Good Job.
The hard science is presented here,
https://iopscience.iop.org/article/10.3847/1538-4357/ac3f3a#apjac3f3as9
Read the conclusions page at the end for the obligatory political pandering!
From the article, the red giant was 120 million light years away and was 10 times more massive than the sun.
In comparison, “Betelgeuse’s mass range from slightly under ten to a little over twenty times that of the Sun. For various reasons, its distance has been quite difficult to measure; current best estimates are on the order of 500–600 light-years from the Sun – a comparatively wide uncertainty for a relatively nearby star.” https://en.wikipedia.org/wiki/Betelgeuse#:~:text=Calculations%20of%20Betelgeuse%27s%20mass%20range%20from%20slightly%20under,comparatively%20wide%20uncertainty%20for%20a%20relatively%20nearby%20star.