theres stars all around us with their gravitatoinal forces balancing out, not to mention the effect of stars gravitational pull is there would be no difference. And earlier i was reffering to the fact that the sun would reduce the gravitational pull on us if it has a graviational force there fore lowering it for example 9.8 -.1=9.79. but for example my school(bcit) we have a gravitation pull of 9.81. Does the sun push back som times? unless you were to say that the earth was acaully accelerating at lets say 9.85m/s^2 and because of the way the sun moved the accelereation felt could range from 9.75 to 9.85 and the average is 9.8. And the average is what is used for convienence reason.