Explain "the right ascension", "the right ascension" and "the heliocentric yellow ascension"

Right ascension: vernal equinox along the celestial equator eastward to the angle of the intersection of celestial time circle and celestial equator, becoming the right ascension of celestial bodies. Right ascension is different from the current angle in that it is measured from meridian circle to the west, while right ascension is measured from the vernal equinox to the east, and the two directions are opposite.

Declination: The angle from the celestial equator along the celestial time circle to the celestial body is called celestial declination. Taking the celestial equator as declination 0, it is positive to the north and negative to the south, which are 0 ~ 90 respectively.

Ascending the yellow meridian (symbol is? Or ω) is one of the orbital elements used to describe the orbit of celestial bodies in space. It starts from the reference direction (longitude origin) and measures the angle of the rising intersection point on the reference plane. There is usually a longitude origin and a reference plane: in the heliocentric orbit, the ecliptic is the reference plane and the vernal equinox is the longitude origin. This angle is measured from vernal equinox to the east (or counterclockwise when viewed from the north) to the rising point.