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Celestial latitude
and celestial
longitude
The moon's path
The latitude and longitude that are determined by using the ecliptic and
vernal equinoctial point as the standard, in order to describe positions
on the celestial sphere. The celestial latitude is 0° on the ecliptic, and it
is measured as far as +90° north of the celestial equator (ecliptic north
pole) and -90° south (ecliptic south pole). The celestial longitude is 0°
above the vernal equinoctial point, and it is measured as it turns to the
east as far as 359° 59' 59".9...
The moon's transit as seen from the center of the earth on the celestial
sphere. It is inclined by approximately 5.1° relative to the ecliptic.
The intersection between the moon's path and the ecliptic moves
on the ecliptic relative to the vernal equinoctial point in a cycle
of approximately 18.6 years. However, when considering that the
inclination angle between the moon's path and the ecliptic is relatively
small, the moon's path can be seen as being approximately on the
ecliptic.
Brief explanation of astronomical terms
43
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