Articles About Solstice (17)
The June solstice is the longest day of the year in the Northern Hemisphere & the shortest day in the Southern Hemisphere.
The December solstice is the summer solstice in the Southern Hemisphere and the winter solstice in the Northern Hemisphere.
2021 Cosmic Calendar
Celestial events and highlights of 2021 and 2022 including supermoons, solar and lunar eclipses, meteor showers, solstices, and equinoxes.
The Gregorian Calendar
The Gregorian calendar is the internationally accepted civil calendar that was first adopted in 1582.
When Is Winter Solstice?
The Winter solstice in the Northern Hemisphere is in December, while in the Southern Hemisphere, it's in June.
What Causes Seasons on Earth?
Seasons change because Earth's rotational axis tilts away or towards the Sun during the course of a year.
Change From Julian to Gregorian Calendar
The Gregorian calendar was first introduced in 1582, however, different countries changed from the Julian Calendar at different times.
December Solstice Facts
10 things you may not know about the December Solstice, the shortest day of the year in the Northern Hemisphere.
Earth's closest approach to the Sun is two weeks after the December solstice is a coincidence and has no special significance.
Astronomical Glossary - Terms & Definitions
What do astronomers really mean when they use those technical terms?
Earth Is Tilted
When an object the size of Mars crashed into the newly formed planet Earth around 4.5 billion years ago, it knocked it over and left it tilted at an angle.
When Is Summer Solstice?
The summer solstice in the Northern Hemisphere is in June, while in the Southern Hemisphere, it's in December.
January: Wolf Moon
The January Full Moon is named after howling wolves. In some cultures, it was known as Old Moon, Ice Moon, Snow Moon, and the Moon after Yule.
December: Cold Moon
The December Full Moon is called the Cold Moon, Long Nights Moon, the Moon before Yule, Oak Moon, and Wolf Moon.
December Solstice Customs
Learn more about the customs, traditions and events surrounding the December solstice.
June Solstice Facts
11 things you may not know about the June Solstice.
June Solstice Traditions
In many Northern Hemisphere cultures, the June solstice is associated with holidays, feasts and celebrations.