What term describes the position of the sun on the celestial sphere during the vernal equinox?

During the vernal equinox, the position of the sun on the celestial sphere is described as being due east. This event occurs around March 20th or 21st each year, marking one of the two points in the year when day and night are of approximately equal length. At this time, the sun rises exactly in the east and sets exactly in the west. This phenomenon can be observed globally, indicating that the sun crosses the celestial equator. Thus, the term that accurately describes this position of the sun is "due east," reflecting its rising point on the horizon during the equinox.