Light Houses

No. Location-Name Lat
Long 		Characteristic Eleva-
tion
meters 		Range
miles 		Structure
Height in meters 		Remarks
(1) (2) (3) (4) (5) (6) (7) (8)

  1. Internatinal number.
  2. LOCATION / name
    if range less then 15 mules - name
    Lt Vessel NAME
    buoies name
  3. Latitude and Longitude.
  4. Characteristic.
  5. Elevation Light height from high water (MHWS or MHHW ).
  6. Range in Nautical Miles
  7. Structure description and height
  8. Remarks

Characteristic

Animation Characteristic Abbreviation
Fixed steady light F
Flashing total duration of light less than dark Fl
Q Flashing Continues quick Q
V Q Flashing Continues very quick Q
Occulting total duration of light more than dark Oc
Isophase light and dark are equal Iso

Group flashing Fl(3)
Group occulting
Oc(2)

Group flashing Green Fl(3)G
Alternating White and Red Al WR

Range of Lights depends on its elevation above sea-level at high water (MHWS or MHHW ) and on its intensity.

Calculate Distance to the Horizon
Height of eye / light
feet / meter
Distance to the Horizon nautical miles

The Distance to the light house is its Distance to the Horizon + eye Distance to the Horizon.

Sample: Eddystone lighthouse