File:Equinox positions.png

Summary[edit]

Positions of the vernal equinox 1500 BC, 500 BC and AD 150.

Generated with xephem, a program published under the GPL.

The red line is a section of the apparent path traced by the Sun through the Earth's year. The red/green line is a projection of the Earth's equator on to the celestial sphere. The crossing point of these two lines is the spring equinox. In 1500 BC it was near the end of the Aries constellation, in 500 BC it was near the beginning of the Aries constellation and in AD 150 (the time of Ptolemy) it was in the center of the Pisces constellation).

Another version File:Equinox_positions2.png

see also File:Equinox path.png

Licensing[edit]

Dbachmann, the copyright holder of this work, hereby publishes it under the following license:

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

	This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
	Attribution: Dbachmann
	You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
	This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue