【摘要】 K指数越大表明行星系统在某一径向方向会合的程度越大.K指数极值标定的太阳轨道运动半径的变化具有凸显的准20 a、179 a、2 400 a周期嵌套关系.随时间尺度的增大，K指数极大值不但呈现出显著的准2 400 a周期，而且太阳系质心在太阳本体内外持续的时间长度的变化也具有准2 400 a周期.这其中隐含太阳轨道运动不绕过太阳系质心的准2 400 a周期特殊规律.本文以木星和太阳连线为基准方向，创建了行星会合向量指数K.K向量指数图像清晰地呈现出由13～14个准179 a包络线周期(其中3～4个周期谷值出现K<0)构成的太阳轨道运动不绕过太阳系质心的准2 400a周期.这一发现为科学辨识太阳轨道运动特征的复杂性又向前推进一步.更多还原

【Abstract】 According to the study on the eigenvalues of the K index, it is found that the larger K index indicated the greater synodic degree of the planetary system in a certain radial direction. The variation of the solar orbit radius calibrated by the extreme value of the K index has a significant nesting relationship of quasi20a, 179a and 2400a periods. With the increase of time scale, the maximum of K index shows a significant quasi2400a period, and the duration of the mass center of the solar system inside and outside the solar body also has a quasi2400a period. This implies the quasi2400a period of the solar orbital motion without bypassing the mass center of the solar system. Previous reports about variation in the distance between the Sun and the mass center of the solar system(including K-index images) have failed in revealing this rule. In this paper, taking the connection between Jupiter and the Sun as the reference direction, the planetary synodic vector index K is established. The K-vector index image clearly shows the quasi2400-year cycle of the Sun orbital motion without bypassing the mass center of the solar system, which is composed of 13～14 quasi179a envelope periods(the trough K values of 3～4 periods appear < 0). This discovery is a further step forward in the scientific identification of the complex characteristics of the Sun’s orbital motion.更多还原