Even though charted objects are not named in the statutes, the principle enunciated is applicable. The Oceania Vance (D.C.) 217 F. 973, affirmed 233 F. 77, 147 C.C.A. 147; The Rhode Island (D.C.) 17 F. 554. In this case the object was stationary and fixed, while the position of a moving craft is shifting.