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Encyclopedia: Ecliptic longitude

Ecliptic longitude (solar longitude or celestial longitude) is one of the co-ordinates which can be used to define the location of an astronomical object on the celestial sphere in the ecliptic coordinate system. In this system, the celestial sphere is divided into two hemispheres by the plane of the ecliptic.

Translations

How to say "Ecliptic longitude" in other languages:

	(German)	Ekliptikale Länge
	(Spanish)	Longitud celeste

Search results

Ecliptic coordinate system

longitude. Like right ascension in the equatorial coordinate system, the zeropoint of the ecliptic... The ecliptic coordinate system is a celestial coordinate system that uses the ecliptic for its fundamental plane. The ecliptic is the path that the sun appears to follow across the sky over the...

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Astronomical opposition

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New moon

ecliptic longitude with the Sun, when the Moon is invisible and a solar eclipse may occur. This... the average ecliptic longitude of the Moon minus the average ecliptic longitude of the Sun (Delauney... difference in ecliptic longitudes: Sun: +20.496" Moon: -0.704" Correction in conjunction...

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Astronomical conjunction

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Tidal acceleration

acceleration. From the period 1969..2001, the result is: -25.858 ±0.003 "/cy**2 in ecliptic longitude... Earth's orbit around the Sun (the ecliptic), rather than in the plane perpendicular to the axis of...

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Chinese calendar

ecliptic longitude of that entry point usually determine the number of a regular month. Month 1, zhÃ... below, these points are given in the Western form, where zero degrees is the ecliptic longitude of... Beijing midnight to midnight at the longitude 120° east of Greenwich. The Kuomintang may have begun to...

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List of astronomical topics

coordinate system -- Ecliptic longitude Ecliptic longitude -- Ecliptic year Year -- Eddington, Arthur..., Geoffrey Geoffrey Burbidge -- Burbidge, Margaret Margaret Burbidge -- Bureau des Longitudes Bureau des Longitudes -- Butterfly Cluster Butterfly Cluster -- C C-type asteroid C-type asteroid -- Caelum...

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