anomalistic tide

См. также в других словарях:

• Arthur Thomas Doodson — Dr. Arthur Thomas Doodson (1890 1968) spent much of his life developing the analysis of tidal motions mainly in the oceans but also in lakes, and was the first to devise methods for shallow water as in estuaries. Tide height and current tables… …   Wikipedia

• Month — For the Egyptian hawk god, see Monthu. A month is a unit of time, used with calendars, which was first used and invented in Mesopotamia, as a natural period related to the motion of the Moon; month and Moon are cognates. The traditional concept… …   Wikipedia

• Year — A year (from Old English gēar) is the orbital period of the Earth moving around the Sun. For an observer on Earth, this corresponds to the period it takes the Sun to complete one course throughout the zodiac along the ecliptic. In astronomy, the… …   Wikipedia

• Orbit of the Moon — Not to be confused with Lunar orbit in the sense of a selenocentric orbit, that is, an orbit around the Moon The Moon completes its orbit around the Earth in approximately 27.3 days (a sidereal month). The Earth and Moon orbit about their… …   Wikipedia

• Groundhog Day gale of 1976 — Infobox winter storm|name=Groundhog Day gale of 1976 image location=19760202sfc.gif U. S. Weather Bureau. [http://docs.lib.noaa.gov/rescue/dwm/1976/19760202 19760208.djvu Daily Weather Maps: February 2 8, 1976.] Retrieved on 2006 11 28.]… …   Wikipedia

• Tropical year — A tropical year (also known as a solar year), for general purposes, is the length of time that the Sun takes to return to the same position in the cycle of seasons, as seen from Earth; for example, the time from vernal equinox to vernal equinox,… …   Wikipedia

• Lunar precession — Unreferenced|date=May 2007There are two important precessional motions in the Orbit of the Moon.The long axis (line of the apsides: perigee and apogee) of the moon s elliptical orbit precesses about once in just under 9 years. It is caused by the …   Wikipedia