该软件计算准确的日期和时间的春分，冬至和凯尔特人跨季度天（Imbolc，贝尔塔内，卢格纳萨德和萨姆海恩）。 跨季度的日子是春分和冬至之间的中间天。 例如，Imbolc 位于北部冬至和北部春分（即北方春分）之间，而贝尔坦位于北部春分和北部夏至之间的中间。当我们试图更确切地定义跨季度天数时，我们发现有两种解释，因此有两种计算方法，它们给出的结果略有不同。这两种方法称为"平均太阳"方法和"真实太阳"方法。平均太阳方法假定（错误地）地球在围绕太阳的圆形轨道上以恒定速度移动。真正的太阳方法根据地球到达其轨道中该点的时间计算跨季度日，该时间在空间（几何上）正好位于冬至（或春分）的位置与随后的春分（或冬至）之间的中间。
版本历史记录
- 版本 6.17 发布于 2019-12-23
更改为试用版 - 版本 5.42 发布于 2018-02-26
为 Windows 10 兼容性重新编译 - 版本 5.22 发布于 2015-12-25
放宽试用版限制 - 版本 3.33 发布于 2009-09-11
维护发布
软件信息
- 软件分类： 首页 + 爱好 > 天文学
- 发布者： Hermetic Systems
- 许可： 免费试用
- 价格： $9.95
- 版本： 6.17
- 适用平台： windows
终端用户许可协议
License Terms Hermetic Systems is the business name of Peter Meyer, [email protected], the developer of this software, and the owner and maintainer of the Hermetic Systems website at hermetic.ch. The Equinoxes, Solstices and Cross-Quarter Days software ("the Software") consists of the executable file and the other files installed by the installation program eqsol_setup.exe obtainable from the Hermetic Systems website. The Software is protected by copyright, which is owned by Hermetic Systems. The Software may be downloaded from the Hermetic Systems website or another authorized download site solely for the purpose of its evaluation with regard to the purchase of a user license. Neither the installation program nor any work derived from it may be distributed further by any means (including via CD or the web) without the permission of the copyright holder. All intellectual property rights related to the Software are owned by Hermetic Systems. You may not rent or lease the Software. You may not modify, translate, reverse engineer, decompile or disassemble the Software or any part thereof or otherwise attempt to derive source code or create derivative works therefrom. You may not remove, alter or destroy any proprietary, trademark or copyright markings or notices contained within the Software. You may not sell or offer for sale any derivative work. Any rights not explicitly granted by Hermetic Systems are reserved. In return for a license fee paid to Hermetic Systems or to one of its authorized representatives or resellers you are granted a license to use the Software in its fully-functional form and you are provided with activation keys for each installation of the Software as follows: (A) If you are a natural person then you receive a single-user license and this entitles you to install, activate and use the Software on a reasonable number of personal computers (e.g., a laptop and a desktop) in your private household or office. (B) If you are an entity other than a natural person (e.g., a corporation) then you are required to purchase a number of single-user licenses equal to the maximum number of persons who will be using the software at any one time. The function of an activation key is to remove any temporal or functional limitations on a particular installation of the Software. A separate activation key is required for each installation (in other words, an activation key works only on a particular computer). In the event that a later version of the software is released, you may update an installation at no charge by downloading and installing the new version. If you change your computer (or make a major hardware modification) you may need to obtain a new activation key. This can be obtained in the same way as before (and at no charge), provided that, in the opinion of Hermetic Systems, the number and frequency of such new activation keys is not unreasonably excessive. Installation of the Software constitutes an agreement that the Software is provided "as is", without any warranties or guarantees. Hermetic Systems makes every effort to ensure that the software is error-free and performs as stated in the online user manual, but does not guarantee this. You assume responsibility for selecting the Software and using it for your intended purposes. In no event shall Hermetic Systems, its resellers or distributors of the Software be liable for any any damages whatsoever arising out of use or inability to use the Software, even if advised of the possibiity of such damages.