1. The problem statement, all variables and given/known data A binary star system has two star of equal luminosity. The apparent magnitude of the two stars together is 11.2, and they are at a distance is 76pcs. How do I work out the apparent and absolute magnitudes of just one star? 2. Relevant equations m=-2.5log(L) m-M=5log(d)-5 M=-2.5log(L/Lsun)+4.8 3. The attempt at a solution luminosities can be added, I know that much.