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A solstice is the time when the Sun reaches its most northerly or southerly excursion relative to the celestial equator on the celestial sphere. Two solstices occur annually, around June 20–22 and December 20–22. In many countries, the seasons of the year are defined by reference to the solstices and the equinoxes .
Jun 20, 2024 · Learn what a solstice is and how it affects the length of days and nights in different hemispheres. Find out how ancient cultures observed and celebrated the solstices with monuments and rituals.
Learn how solstices and equinoxes mark the changing of the seasons on Earth due to its tilted axis. Find out when and where they occur, and how they affect day and night length.
Mar 12, 2024 · Learn what a solstice is, how it affects Earth's seasons and daylight, and how different cultures celebrate it. Explore the science and history of solstices on Earth and other planets.
May 17, 2024 · What is the summer solstice, and when does it happen? The longest day of the year falls on either June 20 or 21 every year in the Northern Hemisphere. Here's everything you need to know about the...
The summer solstice occurs during the hemisphere's summer. In the Northern Hemisphere, this is the June solstice (20, 21 or 22 June) and in the Southern Hemisphere, this is the December solstice (20, 21, 22 or 23 of December).
Learn about the June solstice, when the Sun is directly above the Tropic of Cancer in the Northern Hemisphere. Find out why it marks the start of summer in the North and winter in the South, and how the date and time vary depending on the time zone.
