what happens at this time?
The day of a solstice in either hemisphere has either the most sunlight of the year (summer solstice) or the least sunlight of the year (winter solstice) for any place other than the Equator.
Solstice
 The day of a solstice in either hemisphere has either the most sunlight of the year (summer solstice) or the least sunlight of the year (winter solstice) for any place other than the Equator.
what type of path do planets follow around the sun orbit what is ecliptic? The ecliptic is the plane of Earth's orbit around the Sun. is there a celestial reference plane? The ecliptic forms one of the two fundamental planes used as reference for positions on the celestial sphere, the other being the celestial equator. what do you mean by the last term? The celestial equator is the great circle of the imaginary celestial sphere on the same plane as the equator of Earth. what do you mean by the plane of the solar system? Most of the major bodies of the Solar System orbit the Sun in nearly the same plane. This is likely due to the way in which the Solar System formed from a protoplanetary disk what is an equinox? The instant of time when the plane of Earth's equator passes through the geometric center of the Sun's disk. how often does it happen? Twice each year, around 20 March and 23 September. how many solstices are there? 2 can you please name them summer solstice, winter solstice
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Solstice [SEP] Introduction
A solstice is an event occurring when the Sun appears to reach its most northerly or southerly excursion relative to the celestial equator on the celestial sphere. Two solstices occur annually, around June 21 and December 21. In many countries, the seasons of the year are determined by reference to the solstices and the equinoxes. The term "solstice" can also be used in a broader sense, as the day when this occurs. The day of a solstice in either hemisphere has either the most sunlight of the year (summer solstice) or the least sunlight of the year (winter solstice) for any place other than the Equator.