This angle is known as the obliquity of the ecliptic.
This angle is called the obliquity of the ecliptic.
Anaximander is said to have discovered the obliquity of the ecliptic, that is, the angle at which the plane of the ecliptic is inclined to the celestial equator.
Evolution of the obliquity of the ecliptic during historic time
The obliquity of the ecliptic in 1930 was 23° 27′.
The effect of planetary precession is to move the equinox eastward by 0".11 / year and to diminish the angle between the ecliptic and the equator by about 0".47 / year.
All of this, indeed, happens because of the inclination of the axis of the Earth in relation to the obliquity of the ecliptic.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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