Articles About Seasons (46)
October: Hunter's Moon
October’s Full Moon is the Hunter’s Moon. It's also called Travel Moon, Dying Grass Moon, Blood Moon, or Sanguine Moon.
Defining Seasons
When do seasons begin and end in the two hemispheres?
Full Moon Names
Ancient cultures gave names to the Full Moon. These names are still in use today.
The Gregorian Calendar
The Gregorian calendar is the internationally accepted civil calendar that was first adopted in 1582.
December Solstice
The December solstice is the shortest day the Northern Hemisphere. South of the equator, it's the longest day.
When Does Winter Start?
Winter starts at the winter solstice. When is the winter solstice this year?
What Causes Seasons on Earth?
Seasons change because Earth's rotational axis tilts away or towards the Sun during the course of a year.
September Equinox
The Sun shines directly on the Equator on the September equinox and the length of day and night is nearly equal, but not quite.
June Solstice
The June solstice is the longest day of the year in the Northern Hemisphere and the shortest day in the Southern Hemisphere.
The Harvest Moon 2023
The Harvest Moon varies between September or October in the Northern Hemisphere. It is the Full Moon nearest the autumnal (fall) equinox.
March Equinox
At the March equinox, the Sun crosses the equator from south to north. Explanation and 2023 equinox date.
When Does Fall Start?
North of the equator, fall begins in September. Find out the exact dates for both hemispheres.
When Does Spring Start?
The first day of spring is at the vernal equinox, when day and night are equal. Find out the exact time and date.
December Solstice Facts
10 things you may not know about the December solstice, the shortest day of the year in the Northern Hemisphere.
Equinox: Equal Day & Night?
Equinoxes don't have exactly 12 hours of day and night all over the world, like many believe. Such days, called equilux, do occur, but depend on your location.
November: Beaver Moon
The Full Moon in November is named after beavers. It is also called Frost Moon and Mourning Moon, depending on the winter solstice.
The Ethiopian Calendar
The Ethiopian calendar is similar to the Julian calendar.
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 Does Summer Start?
When is the summer solstice 2023 in the southern and northern hemispheres?
10 Sept Equinox Facts
10 things you may not know about the September equinox.
January: Wolf Moon
January's Full Moon is named after howling wolves. In some cultures, it's known as the Quiet Moon, Severe 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.
August: Sturgeon Moon
The Full Moon in August is called the Sturgeon Moon, named after North America’s largest fish. Other names for this Full Moon include Grain Moon, Corn Moon, Lynx Moon, and Lightning Moon.
Midnight Sun
The Midnight Sun is where the Sun never sets over a period of 24 hours or more. It occurs in polar regions during summer.
What Are Polar Nights?
A Polar Night is a night that lasts for at least 24 hours. It's the opposite of Midnight Sun / Polar Day.
A Year Is Never 365 Days
The definition of a tropical year is the time it takes the Earth to complete a full orbit around the Sun. It is approximately 365.242189 days long.
June Solstice Facts
11 things you may not know about the June solstice.
March: Worm Moon
The Full Moon in March is the Worm Moon, but if it occurs on or after March 21 it is also the Paschal Moon. It's also called Lenten, Crow, Crust, Chaste, Sugar, and Sap Moon.
March Equinox Facts
On March 20, 2023, day and night were of almost equal duration in most time zones in the world.
September: Harvest or Corn Moon
The September Full Moon is usually the Harvest Moon, but this depends on the equinox. It is also called Full Corn Moon or Barley Moon.
February: Snow Moon
The February Full Moon is named after the snow on the ground. Some Native American tribes named this the Hunger Moon, others call it the Storm Moon.
April: Pink Moon
The Pink Moon is the Full Moon in April. It is also called Breaking Ice Moon, Budding Moon, Awakening Moon, Egg Moon, and Paschal Moon. When is the Pink Moon?
June Solstice Traditions
In many Northern Hemisphere cultures, the June solstice is associated with holidays, feasts and celebrations.
June: Strawberry Moon
What is a Strawberry Moon, also called Rose Moon? When is the next Strawberry Full Moon in 2023, why does it happen in June, and how did it get its name?
May: Flower Moon
The Full Moon in May is known as the Flower Moon or Full Flower Moon. Other names include Milk Moon and Hare Moon. What is the meaning behind these names?
Chinese Leap Month
Instead of adding one leap day on February 29 nearly every four years, the Chinese add a leap month every three years to keep their calendar in line with the Earth's rotation.
July: Buck Moon
The Full Moon in July is the Buck Moon. It is also called Thunder Moon, Hay Moon, and Wyrt Moon.
September Equinox Customs
Folklore, customs, traditions and holidays surrounding the September equinox.
The Ethiopian Leap Year
A leap year occurs every 4 years in the Ethiopian calendar when one extra day is added at the end of the year.
Zodiacal Light
Also known as false dawn, zodiacal light is a rare optical phenomena that occur around sunset and sunrise in early spring and late fall.
March Equinox Customs
Learn more about the customs, traditions and events surrounding the March equinox.
Leap Year in the Bahá'í Calendar
The Bahá'í leap year occurs when five extra days are added between the last two months of the calendar. Leap years usually occur every four years.
Equation of Time
Why doesn't the year's earliest sunset occur on the winter solstice, even though it is the shortest day of the year in terms of daylight?
Equinoxes and Solstices
Equinoxes and solstices are a result of Earth’s tilt and its orbit around the Sun.
99% Of Us See Daylight at This Moment (Or Do We?)
Is it really true that 99% of the world's population see daylight at 11:15 UTC on July 8?
Dec 6: Minute of Global Darkness
There's a moment each year when almost 9 in 10 people worldwide experience night.