[填空题]
Estimate the speed of a gal rp clpxq2 9zg0sa:cclu7n)5/ ax369/x vw(uelr 7fdna qy, and its distance from us, if the wavelength for the hwu93vx7afrlq (6ed/ nydrogen line at 434 nm is measured on Earth as being 610 nm.
Eqs.33-4 and 33-5a v $\approx$ c
Eq.33-6 v $\approx $ $ \times 10^9\ \text{y}$
