The star s0-2 of spectral class b1 v orbits the central, Ask an Expert

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The star S0-2, of spectral class B1 V, orbits the central black hole at the Galactic center on an orbit with a semimajor axis a = 920 AU and eccentricity e = 0.867.

a) What is the star's distance from the black hole and pericenter?

b) How close does the star get to the Roche limit?

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