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  2. Lunar precession - Wikipedia

    en.wikipedia.org/wiki/Lunar_precession

    As a result of this nodal precession, the time for the Sun to return to the same lunar node, the eclipse year, is about 18.6377 days shorter than a sidereal year. The number of solar orbits (years) during one lunar nodal precession period equals the period of orbit (one year [ specify ] ) divided by this difference, minus one: ⁠ 365.2422 / 18 ...

  3. Lunar standstill - Wikipedia

    en.wikipedia.org/wiki/Lunar_standstill

    At the minor lunar standstill, the Moon will change its declination during the tropical month from +18.3° to −18.3°, for a total range of 37°. Then 9.3 years later, during the major lunar standstill, the Moon will change its declination during the month roughly from +28.6° to −28.6°, which totals 57° in range.

  4. Lunar node - Wikipedia

    en.wikipedia.org/wiki/Lunar_node

    The 19-year recording period is the nearest full-year count to the 18.6-year cycle of the lunar nodes. [9] In conjunction with sea level rise caused by global warming, lunar nodal precession is predicted to contribute to a rapid rise in the frequency of coastal flooding throughout the 2030s. [10]

  5. Louise McWhirter - Wikipedia

    en.wikipedia.org/wiki/Louise_McWhirter

    The Nodal cycle [ edit ] McWhirter's main theory was that the major of primary trend of business volume and finance is clearly pointed out by the 18.6-year cycle of the North Node as it passes through the twelve signs of the zodiac .

  6. Cassini's laws - Wikipedia

    en.wikipedia.org/wiki/Cassini's_laws

    Orbital inclination and rotation. When the Moon is 5.14° north of the ecliptic, its north pole is tilted 6.68° away from the Earth. The orientation of the plane containing the vectors normal to the orbits and the Moon's rotational axis rotates 360° with a period of about 18.6 years, whereas the Earth's axis precesses with a period of around 26,000 years, so the line-up of this illustration ...

  7. This supermoon has a twist – expect flooding, but a lunar ...

    www.aol.com/news/supermoon-twist-expect-flooding...

    This April full moon is known as the pink moon because it heralds the arrival of spring flowers. Mark Rightmire/MediaNews Group/Orange County Register via Getty ImagesA “super full moon” is ...

  8. Nutation - Wikipedia

    en.wikipedia.org/wiki/Nutation

    The principal term of nutation is due to the regression of the Moon's nodal line and has the same period of 6798 days (18.61 years). It reaches plus or minus 17″ in longitude and 9.2″ in obliquity. [8] All other terms are much smaller; the next-largest, with a period of 183 days (0.5 year), has amplitudes 1.3″ and 0.6″ respectively.

  9. Lunar month - Wikipedia

    en.wikipedia.org/wiki/Lunar_month

    In lunar calendars, a lunar month is the time between two successive syzygies of the same type: new moons or full moons. The precise definition varies, especially for the beginning of the month. Animation of the Moon as it cycles through its phases, as seen from the Northern Hemisphere. The apparent wobbling of the Moon is known as libration.