Equinoxes, Solstices and Cross-Quarter Days 6.27



Publisher Description



This software calculates accurate dates and times for equinoxes, solstices and the Celtic cross-quarter days (Imbolc, Beltane, Lughnassad and Samhain). The cross-quarter days are those midway between the equinoxes and solstices. For example, Imbolc is midway between the northern winter solstice and the northern spring equinox (a.k.a. the northern vernal equinox), and Beltane is midway between the northern spring equinox and the northern summer solstice. When we attempt to define the cross-quarter days more exactly we find that there are two interpretations, and thus two methods of calculation, which give slightly different results. These two methods are called the 'mean sun' method and the 'true sun' method. The mean sun method assumes (erroneously) that the Earth moves at a constant speed in a circular orbit around the Sun. The true sun method calculates a cross-quarter day based on the time at which the Earth reaches that point in its orbit which is spatially (geometrically) exactly halfway between its positions at the solstice (or equinox) and the subsequent equinox (or solstice).

About Equinoxes, Solstices and Cross-Quarter Days

Equinoxes, Solstices and Cross-Quarter Days is a free trial software published in the Astronomy list of programs, part of Home & Hobby.

This Astronomy program is available in English. It was last updated on 05 March, 2024. Equinoxes, Solstices and Cross-Quarter Days is compatible with the following operating systems: Windows.

The company that develops Equinoxes, Solstices and Cross-Quarter Days is Hermetic Systems. The latest version released by its developer is 6.27. This version was rated by 3 users of our site and has an average rating of 3.3.

The download we have available for Equinoxes, Solstices and Cross-Quarter Days has a file size of 2.10 MB. Just click the green Download button above to start the downloading process. The program is listed on our website since 2021-11-14 and was downloaded 268 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded software with your antivirus. Your antivirus may detect the Equinoxes, Solstices and Cross-Quarter Days as malware if the download link is broken.

How to install Equinoxes, Solstices and Cross-Quarter Days on your Windows device:

  • Click on the Download button on our website. This will start the download from the website of the developer.
  • Once the Equinoxes, Solstices and Cross-Quarter Days is downloaded click on it to start the setup process (assuming you are on a desktop computer).
  • When the installation is finished you should be able to see and run the program.



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Users Rating:  
  3.3/5     3
Downloads: 268
Updated At: 2024-03-05
Publisher: Hermetic Systems
Operating System: Windows
License Type: Free Trial