noun
solstitial point
Astronomical term referring to the points on the ecliptic where the sun reaches its maximum declination north or south, marking the summer and winter solstices.
夏至の日、太陽は至点に達する。
On the summer solstice, the sun reaches the solstitial point.
至点は天文学の基本的な概念の一つだ。
The solstitial point is one of the fundamental concepts in astronomy.
分点 is the equinoctial point, analogous to 至点 but for the equinoxes.
From 至 (reach, arrive) and 点 (point), literally 'arrival point', referring to the sun's extreme declination.