The period of revolution, or rotation of a celestial body, determined from the position of an earthly observer. Does not coincide with the sidereal period due to the Earth’s orbital motion. Does not coincide with the sidereal period due to the Earth’s orbital motion. So the synodic period of rotation of the equatorial layers of the Sun is 26.8 days, and the sidereal period is 25.4 days. The synodic period of a planet’s revolution around the Sun is equal to the time between its two successive configurations of the same name, for example, lower conjunctions.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.