Hooligan Harbor

Plot a great circle course between two points on the globe.
Compute the great circle distance between two points.
Determine sunset/sunrise/moonset/moonrise anywhere in the world.
Determine astronomical phenomena such as eclipses, changes of season, current lunar data and date of Easter.
Check Local Notices to Mariners.
Check Tide predictions.
Access multitudes of on-line maps and charts.

Make preparations for getting underway...

Check Local Notices to Mariners. (updated 01-07-2005)
U S Coast Guard Navigation center
Initial heading/Great Circle Distance between two points.
Global Composite Satellite Image showing sea temps/land mass temps/clouds.
Tidal Information (University of South Carolina)
Tidal Information - computed by CO-OPS
Tidal Information - from www.saltwatertides.com (added 01-04-2010)
Tidal Information - from NOAA (added 01-04-2010)
Tide Prediction Resources on the Internet (updated 01-04-2010)
Get correct time from the U S Naval Observatory (updated 01-04-2010)
Get correct time for U.S. Territories from the U S Naval Observatory (added 01-04-2010)
Radiojerry's premier weather site - East Texas Skywarn (updated URL 01-04-2010)

Astronomical phenomena...

Sunrise/Sunset/Moonrise/Moonset
Astronomical Applications from U S Naval Observatory. (rev. 08-18-1998)
Astronomical Data from NOAA (added 01-04-2010)
Moon Calendar - (added 01-04-2010)
Your Sky - an interactive planetarium. View your night sky with real-time data. View the night sky from any date and location. (Added 08-20-1998)

On-line maps and charts...

On-line NOAA Nautical Charts - free service - tax dollars doing real work! (updated URL 0-4-2010)
Maps On Us - A service of Switchboard.com. No Lat/Long but works fast.
Yahoo Maps - Includes detailed driving directions.
Street Map directory of the U.S. Mapquest - can be used to get rough lat/long.
Color Landform Atlas of the U.S.
Perry-Castaņeda Map Collection
Tiger Mapping Service - I use this to obtain lat/long coordinates to plug into my GPS.
MSN Maps and Directions

The Cap'n - a commercial site that sells electronic navigational charts and computer systems.

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