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How Big Is Mizar?
How Big Is Mizar?
Sophia Al-Mansoor••6 min read
Mizar has a spectral type
spectral type
Most stars are currently classified under the Morgan–Keenan (MK) system using the letters O, B, A, F, G, K, and M, a sequence from the hottest (O type) to the coolest (M type). ... The full spectral class for the Sun is then G2V, indicating a main-sequence star with a surface temperature around 5,800 K.
of A1V, a surface temperature of 9000° Kelvin and a luminosity 30 times the Sun. It has a mass of 2.5 solar masses and a diameter ?times the Sun.
How big is Mizar compared to the Sun?
Mizar Aa and Mizar Ab – the two components of Mizar A – have roughly the same mass (2.2 times that of the Sun), radius (2.4 times solar), temperature (9,000 K), and luminosity (33.3 solar luminosities).
How many stars make up Mizar?
Mizar is really four stars, and Alcor is really two stars. So what we see as two stars are really six in one!
