HSTK P Admiralty (Lights)

Position of navigation light (size and style of “star” may vary), light, lighthouse

Light on standard charts

Significant all-round light on multicoloured charts (generally for offshore navigation)

Lighted offshore platform

Lighted offshore platform on multicoloured charts

Lighted beacon tower

Lighted beacon / On smaller scale charts, where navigation within recognition range of the daymark is unlikely, lighted beacons are charted solely as lights.

Lighted buoyant beacon, resilient beacon

Navigation lights on landmarks or other structures (examples)

W

White (only on sector and alternating lights)

R

Red

G

Green

Bu

Blue

Vi

Violet

Y

Yellow

Orange

Amber

Colours of lights shown on :

standard charts

on multicoloured charts

on muticoloured charts at sector lights

Period in seconds and tenths of a second

Elevation of light given in metres

Light with single range

Light with two different ranges

Light with three or more ranges

horizontally disposed

vertically disposed

3 lights disposed in the shape of a triangle

Leading lights with leading line (the firm line is the track to be followed) and arcs of visibility on standard charts

Leading lights with leading line (the firm line is the track to be followed) and arcs of visibility on multicoloured charts

Leading lights on standard charts (not means “in line”; the firm line is the track to be followed; the light descriptions will be at the light stars or on the leading line, not usually both)

Leading lights on multicoloured charts (not means “in line”; the firm line is the track to be followed; the light descriptions will be at the light stars or on the leading line, not usually both)

Leading lights on small-scale standard charts

Leading lights on small-scale muticoloured charts

Lights in line on standard charts (for example, marking the sides of a channel)

Lights in line on multicoloured charts (for example, marking the sides of a channel)

Rear or upper light

Front or lower light

Direction light with narrow sector and course to be followed, flanked by darkness or unintensified light

Direction light with course to be followed. Sector(s) uncharted

Direction light with narrow fairway sector flanked by light sectors of different characters on standard charts

Direction light with narrow fairway sector flanked by light sectors of different characters on multicoloured charts

Moiré effect light (day and night), variable arrow mark. Arrows show when course alteration needed

Sector light on standard charts

Sector light on multicoloured charts

Sector light on standard charts. Sectors not charted

Sector light on multicoloured charts. Sectors not charted

Fixed

Single-occulting

Group-occulting

Composite group-occulting

Isophase

Single-flashing

Group-flashing

Composite group-flashing

Long-flashing (flash 2s or longer)

Continuous quick

Group quick

Interrupted quick

Continuous very quick

Group very quick

Interrupted very quick

Continuous ultra quick

Interrupted ultra quick

Morse Code

Fixed and flashing

Alternating

Sector lights on standard charts, the white sector limits marking the sides of the fairway

Sector lights on multicoloured charts, the white sector limits marking the sides of the fairway

Main light visible all-round with red subsidiary light seen over danger on standard charts

Main light visible all-round with red subsidiary light seen over danger on multicoloured charts

All-round light with obscured sector on standard charts

All-round light with obscured sector on multicoloured charts

Light with arc of visibility deliberathely restricted on standard charts

Light with arc of visibility deliberathely restricted on multicoloured charts

Light with faint sector on standard charts

Light with faint sector on multicoloured charts

Light with intensified sector on standard charts

Light with intensified sector on standard charts

Light with intensified sector on multicoloured charts

Light with intensified sector on multicoloured charts

Lights exhibited only when specially needed (e.g. for fishing vessels, ferries) and some private lights on standard charts

Lights exhibited only when specially needed (e.g. for fishing vessels, ferries) and some private lights on multicoloured charts

Daytime light (charted only where the character shown by day differs from that shown at night) on standard charts

Daytime light (charted only where the character shown by day differs from that shown at night) on multicoloured charts

Fog light (exhibited only in fog, or character changes in fog) on standard charts

Fog light (exhibited only in fog, or character changes in fog) on multicoloured charts

Unwatched (unmanned) light with no standby or emergency arrangements

Temporary

Extinguished

Manually activated

Aeronautical light (may be unreliable)

Air obstruction light of high intensity

Air obstruction lights (e.g. on radio mast)

Fog detector light

Floodlit, floodlighting of a structure

Strip light

Private light other than one exhibited occasionally

Synchronized (synchronous or sequential)