Uy scuti is the biggest star in universe and R136a1 is the brightest star in the the universe...
but R136a1 has greater mass as compare to uy scuti.
can u tell me why ????
true space lover can answer .
if u don't know the answer leave this question.
don't copy paste from Google..
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Answer:
your answer mate
Explanation:
If UY Scuti replaced the sun in the center of the solar system, its photosphere would extend just beyond the orbit of Jupiter. ... That honor goes to R136a1, which weighs in at about 300 times the mass of the sun but only about 30 solar radii. UY Scuti, in comparison, is only about 30 times more massive than the sun.