| 摘要: |
| 行星会合向量指数K可以指代太阳相对太阳系质心的运动特征。太阳质心距太阳系质心的最大距离已超出太阳的实体直径，这时太阳系质心已经不在太阳本体之内。太阳到太阳系质心距离的变化相对行星运动轨道而言，就是太阳焦点位置的变化。K向量指数间接指代太阳轨道运动具有亚轨道尺度准2400 a特征周期和轨道尺度的准100 ka和准410 ka显著周期。研究发现太阳焦点在椭圆轨道拱线上会出现千年尺度的180°反向变化。这表明造成地球轨道偏心率的变化不只是行星系统的摄动这一种动力机制，还应该考虑行星系统对太阳轨道运动制衡调控作用的贡献。此外还发现，准410 ka地球轨道偏心率长周期作为地质计时“钟摆”具有准方向不变性特点。这种新观念可能对探讨轨道与亚轨道尺度气候变化成因提供新的思想方法和理论探索途径。 |
| 关键词: 太阳系质心 行星会合向量指数 地球轨道偏心率 准1074 a周期 准2400 a周期 准410 ka周期 |
| DOI：10.7515/JEE233002 |
| CSTR： |
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| Analysis of the sub-orbital scale and quasi-410 ka periodic characteristics of earth’s orbital eccentricity: new insights into the eccentricity cycle mechanism based on the planetary synodic vector index |
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LIU Fugang*
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College of Science, Qiqihar University, Qiqihar 161006, China
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| Abstract: |
| The planetary synodic vector index K can represent the motion characteristics of the sun relative to the mass center of the solar system. The maximum distance of the mass center of the sun from the mass center of the solar system has exceeded the actual diameter of the sun, indicating that the mass center of the solar system is no longer within the sun itself. The variation in the sun’s distance to the solar system’s mass center, relative to the planetary motion orbits, is the variation in the position of the sun’s focus. The K vector index indirectly indicates that the sun’s orbital motion has a sub-orbital scale quasi-2400 a characteristic period and significant orbital scale quasi-100 ka and quasi-410 ka cycles. It has found that the sun’s focus exhibits millennial-scale 180° reversals along the elliptical orbital arc. This suggests that the variation in earth’s orbital eccentricity is not solely due to the perturbation of the planetary system but should also consider the contribution of the planetary system’s balancing and regulatory effects on the sun’s orbital motion. Additionally, it has been discovered that the quasi-410 ka period of earth’s orbital eccentricity serves as a geological timing “pendulum” with quasi-directional constancy. This new concept may provide new insights and theoretical exploration pathways for discussing the causes of climate change at orbital and sub-orbital scales. |
| Key words: mass center of the solar system planetary synodic vector index earth’s orbital eccentricity quasi-1074 a cycle quasi-2400 a cycle quasi-410 ka cycle |
