KOEN
Portsmouth Harbor (New Castle) Light in the middle, with the lights within 20 km, in their listed colours.
Portsmouth Harbor (New Castle) Light — light characteristic, height, range
Steady green light
Turn on the green light.Leave it.Do not turn it off.
- Characteristic
- F G
- Height
- 52 ft · 16 m
- Nominal range
- 12 nmi = 22 km
- Structure
- White conical tower, fog signal house attached.
- Remarks
- HORN: 1 blast ev 10s (1s bl). Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 45 minutes.
- Position
- 43.0711°N, 70.7086°W · NH
Lights nearby
- Cod Rock Lighted Buoy 5One green flash every 4 seconds · 440 m
- Fishing Island Ledge Lighted Buoy 4Continuous quick red flashes · 795 m
- Wood Island Lighted Buoy 2One red flash every 4 seconds · 1.3 km
- Portsmouth Harbor Channel Range Front LightRed, 3 s on and 3 s off · 1.3 km
- Clark Island Light 8One red flash every 2.5 seconds · 1.4 km
- Portsmouth Harbor Channel Range Rear LightSteady red light · 1.4 km
- Whaleback Light2 white flashes every 10 seconds · 1.7 km
- Jaffrey Point Light 4One red flash every 4 seconds · 1.8 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