月球交点

分析全球中源和深源大地震与月球交点运动的关系，确定了15个地区的中源和深源大地震有明显的18.6a地震轮回。

Seismic regions in which large intermediate and deep focus earthquakes have significant 18.6 years cycle have been determined by analyzing correlation between the events and the tropic longitude of lunar ascending node .

考虑月球升交点黄经的地月低能转移轨道

Low Energy Transfer Orbit to the Moon Considering Longitude of the Ascending Node of the Moon

经χ~2检验可知。东北浅震受18.6年周的月球升交点运动和22年周的太阳黑子磁场交变影响较显著。

, By using x ~ 2 test method , it is found that shallow shockes are under the influence of the motion of rising intersection of Lunar with 18 . 6 years 's cycle and sunspot magnetic variation period per 22 years .

本文以平面和空间的双二体问题为基础，研究了几种类型的击中月球火箭的轨道在击中月球时同月面交点的分布问题。

This paper discusses the problem of distribution of points on the moon 's surface intersected by the orbits of several kinds of lunar rocket , based on the planar and space double two-body problem .