The idea that solar oscillations might have been stimulated by gravitational radiation from a nearby binary system1,2 has recently been explored by Delache and co-workers3,4. They have announced that the γ-ray source CG195+4, known as Geminga, varies in intensity with a period of 159.96min (ref. 3), and therefore has a frequency just (1 yr)-1 greater than the 160.01-min solar oscillation5-7. From this coincidence they have inferred a gravitational connection between the two oscillations. We show here that if the generally accepted ideas of gravitational radiation are correct, the 160-min solar oscillation could not have been driven to its observed amplitude by any binary system of stellar mass. Only if there were a sustained resonance between the incident radiation and a solar mode of oscillation could there be any chance of an observable response. However, gravitational radiation causes the binary system to spin up, prohibiting it from remaining in resonance with a 160-min mode for long enough to have a perceptible effect It is just possible that 5-min oscillations in the Sun could be excited to an observable amplitude by a binary system having an orbital period of ~10 min at 1,000 AU.