How To Instal Themes On S2?

Determine the combined magnitude of the system s1+ s2 if the star s2 is at a distance of 5 pc?

• I am totally confused on how to do this question any help would be appreciated thanks Two solar type stars (s1 and s2) are in an apparent binary system (i.e. projected at the same position onto the sky but not physically connected) Star s1 is at a distance of 10pc and has an apparent magnitude of m = 4.83 mag Determine the combined magnitude of the system s1+ s2 if the star s2 is at a distance of 5 pc

• Answer:

  Have a look at the following links, PM me if you can't figure it out. http://lcogt.net/book/what-distance-modulus http://en.wikipedia.org/wiki/Distance_modulus