Chart correction N47/20 — chart 44040
44040 26Ed. 10/7/17 LAST NM N42/20 N47/20 Change Period of buoy to 10s 56°18.6′N 11°29.1′E (See N28/20) (36(542)20 Norresundby)
Source: NGA U.S. Notice to Mariners · edition: 26Ed. 10/7/17
Reference information — always verify against official Notices to Mariners before navigation.