# Does a celestial system exhibit a collective magnetic field?

Sol exhibits a magnetic field, most of the planets in orbit around Sol exhibit a magnetic field - strong and weak both.

Does the solar system as a whole exhibit a magnetic field?

Does the paradigm scale upwards to larger celestial systems such as a cluster or galaxy?

-
The sun ejects charged particles called solar wind. Since moving charged particles are essentially a current, they produce a magnetic field. Although as the linked wikipedia article says, the value of this magnetic field at the distance of the earth is tiny (~ $10^{-9}$ Tesla).