I'm building a S-Type binary system where the primary star is a black hole. Yet the system formed as a O + K-Spectral class binary and the 20 solar-mass O giant went nova 2,7 myr after both the stars had transitioned from T Tauri tars to the main sequence after ca. 50 myr, like our sun did. Planets around the 0.78 solar-mass K-Type star should have almost reached their final composition and masses at that time. When the supernova happened the K-Type star was 2,8 ly away from it's partner. Assume that the systems plane of the ecliptic was aligned with the O-Giant.

What where/are the immediate and long term effects of the supernova on the system?

Edit: Added the hard-science tag after the first answer, because I would like to see some numbers backing up peoples claims. Some back the envelope calculations would suffice, no need for complex math.

posted almost 5 years ago

TheDyingOfLight‭

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