KOEN
Derby Wharf Light in the middle, with the lights within 20 km, in their listed colours.
Derby Wharf Light — light characteristic, height, range
One red flash every 6 seconds
Count 6 seconds.Flash red, once.Begin again.
- Characteristic
- Fl R 6s
- Height
- 25 ft · 8 m
- Nominal range
- 4 nmi = 7 km
- Structure
- White square tower.
- Remarks
- Maintained by the U.S.Park Service.
- Position
- 42.5165°N, 70.8835°W · MA
Lights nearby
- Derby Channel Lighted Buoy 4One red flash every 2.5 seconds · 174 m
- Salem Light 23Continuous quick green flashes · 961 m
- Salem Channel Lighted Buoy 21One green flash every 4 seconds · 1.5 km
- Salem Channel Lighted Buoy 22Continuous quick red flashes · 1.7 km
- Fort Pickering LightOne white flash every 4 seconds · 1.8 km
- Salem Channel Lighted Buoy 17One green flash every 2.5 seconds · 2.9 km
- Salem Channel Lighted Buoy 16One red flash every 4 seconds · 3.4 km
- Hospital Point Range Rear LightSteady white light · 3.6 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: U.S. Coast Guard Light List (opens in a new tab) · Checked