Lights Marking Fairways

NOS NIMA IHO/Foreign NIMA Charts   Leading Lights and Lights in Line Leading lights with leading line (firm line is fairway) and arcs of visibility; Bearing given in degrees and minutes Leading lights ‡ : any two objects in line Bearing given in degrees and minutes Leading lights on small-scale charts Lights in line, marking the sides of a channel Rear or upper light Rear Lt, Upper Lt Front or lower light Front Lt or Lower Lt   Direction Lights Direction light with narrow sector and course to be followed, flanked by darkness or unintensifed light Direction light with course to be followed; uncharted sector is flanked by darkness or unintensified light Direction light with narrow fairway sector flanked by sectors of different character Moiré effect light (day and night) Arrows show when course alteration needed   Note: Quoted bearings are always from seaward.