Welcome to Potomac Boaters!
Welcome fellow boater to the Potomac River Boating Community! You have found the most comprehensive site supporting boaters around the Potomac River region stay in touch, schedule events, and meet new people. We focus on the Anacostia, Occoquan, Saint Mary's, Tobacco, Patuxent, Potomac, and Rappahannock Rivers as well as the surrounding creeks, tributaries, communities, and the Chesapeake Bay.

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Moon Phase

Moon Phase

Moon Phase Calculator *opens new window

You can obtain the times of sunrise, sunset, moonrise, moonset, transits of the Sun and Moon, and the beginning and end of civil twilight, along with information on the Moon's phase by specifying the date and location in one of the two forms below and clicking on the "Get data" button at the end of the form. Data is from the United States Naval Observatory.

Form A - U.S. Cities or Towns

The place name you enter above must be a city or town in the U.S. The place's location will be retrieved from a file with over 22,000 places listed. Either upper- or lower-case letters or a combination can be used. Spell out place name prefixes, as in "East Orange", "Fort Lauderdale", "Mount Vernon", etc. The only exception is "St.", which is entered as an abbreviation with a period, as in "St. Louis". You need only enter as many characters as will unambiguously identify the place.

Form B - Locations Worldwide

The place name you enter above is merely a label for the table header; you can enter any identifier, or none (avoid using punctuation characters). The data will be calculated for the longitude and latitude you enter below.

Longitude:
Latitude:
Time Zone:

Jan 5, 2011
(278 Views)
Last Modified: Jan 5, 2011 at 7:51 PM