Harvest Moon 2021 by Keith R Wahl, Made From RI Gallery

September 21, 2021  •  Leave a Comment

Harvest Moon 2021

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Harvest Moon 2021 20210920 DSCN1212Harvest Moon 202120 September 2021 Phase: Full Moon Illumination: 100% Moon Age: 14.28 days Moon Angle: 0.51 Moon Distance: 388,844.71 km Sun Angle: 0.53 Sun Distance: 150,200,158.43 km

Harvest Moon or Full Corn Moon? Which is it? In late September 2021, it is both. The nomenclature all centers around the Autumnal Equinox.

In ancient times, seasonal change followed the lunar month rather than the solar year. The solar year is the twelve months tracked in our contemporary calendar.

Most years, the September Full Moon is the Harvest Moon. This particular name is given to the Full Moon which is closest to the September equinox, which is the start of the fall in astronomy. The astronomical seasons do not match up with the lunar month. Therefore, the month of the Harvest Moon varies. Usually, it occurs in September, but every three years, it is in the month of October.

Fun Fact: The point at which a Full Moon occurs can be measured down to a fraction of a second. The time it takes between full moons is known as a Synodic month and is 29.530587981 days long.

20 September 2021
Phase: Full Moon
Illumination: 100%
Moon Age: 14.28 days
Moon Angle: 0.51
Moon Distance: 388,844.71 km
Sun Angle: 0.53
Sun Distance: 150,200,158.43 km

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© Keith R Wahl, Made From RI/Made From RI Gallery, 2021. Unauthorized use and/or duplication of this material without express and written permission from this site’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Keith R Wahl and Made From RI/Made From RI Gallery with appropriate and specific direction to the original. 

 

 


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