Why Is Mirfak So Bright?

Science of Mirfak.
At a distance of about 600 light-years, Mirfak lies much farther than the Big Dipper stars, so this star has to be intrinsically very luminous to shine so brightly in our sky. If Mirfak stood at the sun's distance from Earth, its disk would cover several thousand times more sky.

Which star is brighter Mirfak or Algol?

Mirfak, Alpha Persei (α Per) is a yellow supergiant star located in the constellation Perseus. With an apparent magnitude of 1.806, it is the brightest star in Perseus, outshining the more famous Algol, and the 33rd brightest star in the sky.

How old is Mirfak?

Mirfak itself is less than 50-million years old, but it's already entered old age. It's a supergiant, having ballooned up to about 60 times the size of our sun. And it's bright too—five THOUSAND times brighter than the sun.

Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.