right ascension of ascending node

例句：

1. 1.The astronomical observation requires precise knowledge of the right ascension of the ascending node.
   天文观测需要精确了解上升节点的正黄赤交角。
2. 2. The research team used a telescope to observe the star's right ascension of the ascending node.
   研究小组使用望远镜观察这颗星星的上升节点的正黄赤交角。
3. 3.The scientists determined the right ascension of the ascending node based on their observations.
   科学家们根据他们的观察确定了上升节点的正黄赤交角。