The lunar nodes are the points where the moon's path in the sky crosses the ecliptic, the sun's path in the sky

The lunar nodes are the orbital nodes of the Moon, that is, the points where the orbit of the Moon crosses the ecliptic (which is the apparent path of the Sun across the heavens against the background stars). The ascending node is where the moon crosses to the north of the ecliptic. The descending node is where it crosses to the south. Image File history File links This is a lossless scalable vector image. ... Image File history File links This is a lossless scalable vector image. ... An orbital node is one of the two points where an inclined orbit crosses a plane of reference (e. ... This article is about Earths moon. ... Two bodies with a slight difference in mass orbiting around a common barycenter. ... The plane of the ecliptic is well seen in this picture from the 1994 lunar prospecting Clementine spacecraft. ... Sol redirects here. ... STARS can mean: Shock Trauma Air Rescue Society Special Tactics And Rescue Service, a fictional task force that appears in Capcoms Resident Evil video game franchise. ...

Eclipses occur only near the lunar nodes: Solar eclipses occur when the passage of the Moon through a node coincides with the new moon; lunar eclipses occur when it coincides with the full moon. The Moon's distance to the nodes will be less than about 1.5°.^[1] This article is about astronomical eclipses. ... Photo taken during the 1999 eclipse. ... The lunar phase depends on the Moons position in orbit around Earth. ... Time lapse movie of the 3 March 2007 lunar eclipse A lunar eclipse occurs whenever the Moon passes through some portion of the Earth’s shadow. ... For other uses, see Full Moon. ...

The lunar nodes precess rather quickly around the ecliptic, completing a revolution (called a draconitic or nodical period, the period of nutation) in 6793.5 days or 18.5996 years (note that this is not the saros eclipse cycle). The moons elliptical orbit precesses about once in just under 9 years. ... Rotation (green), Precession (blue) and Nutation (red) of the Earth Nutation is a slight irregular motion (etymologically a nodding) in the axis of rotation of a largely axially symmetric object, such as a gyroscope or a planet. ... A Saros cycle is a period of 6585 + 1/3 days (approximately 18 years 10 days and 8 hours) which can be used to predict eclipses of the sun and the moon. ... Time-lapse series of photos of the lunar eclipse of October 2004 as seen from Northern California. ...

Names and symbols

The nodes are called by different names in different areas of the world.

Since the ascending node is the point of intersection between the ecliptic and the plane of the lunar orbit where the Moon is ascending from the South to the North, it is sometimes called the North node. In ancient European texts, it is referred to as the dragon's head (Caput Draconis, or Anabibazon). The symbol of the ascending node is , the astronomical and astrological symbol for the Dragon's head. Similarly the descending node is the point where the Moon is descending from North to South, and is sometimes referred to as South node. It is also known as the dragon's tail (Cauda Draconis, or Catabibazon), and its symbol is the inversion of that of the ascending node: . Note that the so-called North node may in fact lie South of the South node in the course of the nodal cycle. Image File history File links Northnode-symbol. ... For other uses, see Astronomy (disambiguation). ... Hand-coloured version of the anonymous Flammarion woodcut (1888). ... In European folklore, a dragon is a serpentine legendary creature. ... Image File history File links Southnode-symbol. ...

In Hindu astrology (or Jyotish), the ascending node is called Rahu and the descending node is called Ketu. To meet Wikipedias quality standards, this article or section may require cleanup. ... To meet Wikipedias quality standards, this article or section may require cleanup. ...

Extreme declinations

The lunar orbit is inclined by about 5 degrees on the ecliptic: hence the Moon can be up to about 5 degrees North of the ecliptic, and as much South of the ecliptic. The ecliptic is inclined by about 23.4° on the celestial equator, the plane that is perpendicular to the rotation axis of the Earth. As a consequence, once during the 18.6-year nodal period, when the ascending node of the Moon's orbit coincides with the vernal equinox, then the Moon reaches extreme northern and southern declinations. Then it also has its extreme northern and southern azimuth points of rising and setting on the horizon; its extreme lowest and highest altitude when crossing the meridian; and potentially extreme late first sightings of the new moon. Furthermore, occultations by the Moon of the bright star group the Pleiades, which are over 4° North of the ecliptic, occur during a comparatively brief period once every nodal period. The celestial equator is a great circle on the imaginary celestial sphere, which could be constructed by inflating the Earths equator until it intersects with said sphere. ... Illumination of Earth by Sun on the day of equinox The vernal equinox (or spring equinox) marks the beginning of astronomical spring. ... In astronomy, declination (abbrev. ... Azimuth is the horizontal component of a direction (compass direction), measured around the horizon, from the north toward the east (i. ... Altitude is the elevation of an object from a known level or datum. ... This article is about the astronomical concept. ... The lunar phase depends on the Moons position in orbit around Earth. ... In this July, 1997 still frame captured from video, the bright star Aldebaran has just reappeared on the dark limb of the waning crescent moon in this predawn occultation. ... A shorter exposure shows less nebulosity. ...

Astrological significance

The lunar nodes are of major astrological significance in Vedic astrology, and are considered to a limited degree in Western astrology. Usually only the north node is marked in horoscopes, as the south node is by definition always located at the opposite point in the astrological chart. In Vedic Astrology, the north node is called Rahu and the south node Ketu, and both are marked in the chart. This article needs cleanup. ... Western astrology is the system of astrology most popular in Western countries. ... In astrology, a horoscope is a chart or diagram representing the positions of the planets and other celestial bodies at the time of any moment in time or any event, such as a persons birth. ...

Their significance can vary widely between approaches. In general, the north node is viewed a point of opportunity for growth and development and self help, while the south node is thought to represent karmic repression or tendencies that restrict growth. The north node carries the positive and beneficial tone of Jupiter, while the south node expresses the restrictions and obstacles of Saturn. Another view is that the north node represents positive objectives and the south node denotes the easy way out with little opportunity for growth. The two nodes together are most commonly referred to simply as the nodal axis, the lunar nodes, or the moon's nodes. The term self-help can refer to any case or practice whereby an individual or a group attempts self-guided improvement[1]—economically, intellectually or emotionally. ... Karmic is Nada Surfs demo EP. All the demos recorded in early 1995 and released in the same year. ... A repressed memory, according to some theories of psychology, a memory (often traumatic) of an event or environment which is stored by the unconscious mind but outside the awareness of the conscious mind. ... Astronomical symbols/glyphs representing the Sun, Moon, Pluto and planets, along with the Earth, in Western astrology. ... Astronomical symbols/glyphs representing the Sun, Moon, Pluto and planets, along with the Earth, in Western astrology. ...

In Vedic astrology, Rahu (north node) is considered to be similar to Saturn, and Ketu similar to Mars. Rahu signified materialism and desires, whereas Ketu signifies obstacles in the material realm but spiritual tendencies. In Hindu mythology, Rahu is a snake that swallows the sun or the moon causing eclipses. ... In Hindu mythology, Ketu is generally referred to as a shadow planet. ...

See also

• Astrology
  • Astrological aspects
• Eclipse
• Horoscope
• Lunar standstill
• Orbit of the Moon
• Natal chart

Hand-coloured version of the anonymous Flammarion woodcut (1888). ... In astrology, an aspect is the relative angle between two heavenly bodies. ... This article is about astronomical eclipses. ... A horoscope calculated for January 1, 2000 at 12:01:00 A.M. Eastern Standard Time in New York City, New York, USA (Longitude: 074W0023 - Latitude: 40N4251). In astrology, a horoscope is a chart or diagram representing the positions of the Sun, Moon, planets, the astrological aspects, and... At a major lunar standstill, which takes place every 18. ... The orbit of the Moon around the Earth is completed in approximately 27. ... This natal chart, appearing in Ebenezer Siblys Astrology (1806), was drawn for the speculated birth date of Jesus Christ, midnight, December 25, year 45 in the Julian calendar. ...

References

1. ^ André Danjon. Astronomie Générale. 2nd Edition, Paris, 1980.

André-Louis Danjon (April 6, 1890 – April 21, 1967) was a French astronomer born in Caen, France. ...

External links

• Sun and Moon Polar Applet, showing moonrise/moonset azimuths
• Astronomy Answers: What are the standstills of the Moon?