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Ecliptic Longitude

A selection of articles related to ecliptic longitude.

02 Galactic Alignment, Crycifying the Earth on the Galactic Cross List of problems solved with a planispheric astrolabe Determination of Equinox and Solstice Dates

Original articles from our library related to the Ecliptic Longitude. See Table of Contents for further available material (downloadable resources) on Ecliptic Longitude.

Origin of the Zodiac Signs
Zodiac is that imaginary belt encircling the earth through which the sun, moon, and the planets pass during the year.
Mystic Sciences >> Astrology
Astrology >> The Moon
Astronomy in Ancient Civilisations
It is a pity that the myths of ancient civilisations are so easily dismissed as the musings of savage minds, as it is subsequently easy to overlook the fact that many of their myths were encryptions of their astronomical knowledge. The best example of this...
Modern Science >> Astronomy
So What is a Blue Moon?
We are not having any Blue Moons this year but the experts say that year 2001 will have an official "Blue Moon" in November. Your geographic location can make a difference to your experience of a Blue Moon. Depending on your longitude you may go...
Astrology >> The Moon

Ecliptic Longitude is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Ecliptic Longitude books and related discussion.

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Starry Night-Eclipses Laboratory 7
Ecliptic longitude is measured along the Ecliptic in degrees starting from the position of the Sun degrees of the Sun's current Ecliptic longitude at New Moon .
Mathematical appendix 2
and p is the longitude of solar perigee which completes a full cycle in 21 000 years.
2b. The Ecliptic 2b.2 Obliquity of the Ecliptic 2b.4 From Earth's point
2b.5 Ecliptic on Mercator Map. Ascending Node of Sun (blue) is start of spring.
A Modern Almagest
Determination of Ecliptic Longitude . . .
ecliptic longitude (λ). – ecliptic latitude (β). • vernal equinox (ϒ).

Suggested News Resources

See Venus, Jupiter & Moon Align in Weekend Celestial Show
[Infographic: Moon Phases & Lunar Cycle] Astronomers define the "new moon" as that moment when the moon occupies the same ecliptic longitude as the sun.

Suggested Web Resources

Ecliptic coordinate system - Wikipedia, the free encyclopedia
The longitudinal angle is called the ecliptic longitude or celestial longitude ( denoted λ), measured eastwards from 0° to 360°.
Ecliptic - Wikipedia, the free encyclopedia
Ecliptic Longitude and Right Ascension of the Sun
Ecliptic Longitude and Right Ascension of the Sun General Astronomy discussion .
Ecliptic longitude | Define Ecliptic longitude at
Ecliptic longitude definition at, a free online dictionary with pronunciation, synonyms and translation. Look it up now!
Determination of Ecliptic Longitude
Jul 21, 2010 The sun's ecliptic longitude is defined as the angle subtended at the earth between the vernal equinox and the sun. Hence, from Fig.

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