日下点
- 网络Subsolar point;sub-solar point
日下点-
随着行星际磁场与日地连线夹角的增大，弓激波强度参数的最大值有所减小，且位置朝远离日下点方向偏移；但气压比和总压比的分布基本上不受影响。
When the angle between the IMF and the Sun-Earth line increases , the maxima of shock strength parameters of the bow shock decrease and the maximum points shift away from the subsolar point , but the distributions of gas-pressure ratio and total pressure ratio are essentially not affected .