Neptune also has similarities with Uranus in its magnetosphere , with a magnetic field strongly tilted comparative to its rotational axis at 47 Â and offset at least 0.55 radii ( about 13,500 kilometres ) from the planet 's physical center . Neptune also resembles Uranus in its magnetosphere , with a magnetic field strongly tilted relative to its rotational axis at 47 Â and offset at least 0.55 radii , or about 13500 km from the planet 's physical center .