On some occasions at the time of full moon there is also a lunar eclipse so the moon's face appears reddish due to the rayleigh scattering of blue light in Earth's atmosphere. Lunar eclipses can occur only at full moon, where the Moon's orbit allows it to pass through Earth's shadow. Lunar eclipses do not occur every month because the Moon usually passes above or below Earth's shadow (which is mostly restricted to the ecliptic plane).
https://en.wikipedia.org/wiki/Full_moon
What is a Sturgeon Moon? The full moon that appears in August is called the Sturgeon Moon. North American fishing tribes called August’s full moon the sturgeon moon since the species was abundant during this month, especially in the Great Lakes and other major bodies of water.
http://fullmoonphases.com/sturgeon-moon/
A full moon is the lunar phase that occurs when the Moon is completely illuminated as seen from Earth. This occurs when Earth is located directly between the Sun and the Moon (more exactly, when the ecliptic longitudes of the Sun and Moon differ by 180 degrees).
https://en.wikipedia.org/wiki/Full_moon
Two full moons in one month (the second of which is a blue moon): 2009: December 2, December 31 (partial lunar eclipse visible in some parts of the world), only in time zones west of UTC+05. 2010: January 1 (partial lunar eclipse), January 30, only in time zones east of UTC+04:30.
https://en.wikipedia.org/wiki/Blue_moon
Sturgeon Moon Name Variations. The Sturgeon Moon of August is sometimes referred to as the the Red Moon because, as the Moon rises in August, it appears reddish through any sultry haze. August’s full moon has also been called the Green Corn Moon and the Grain Moon.
http://fullmoonphases.com/sturgeon-moon/
Traditionally, the name goes to the full moon closest to the autumn equinox, which falls during October once or twice a decade. Sometimes the September full moon was called the Corn Moon. October: The Hunter's Moon. After the fields have been reaped, the leaves begin to fall and the deer are fat and ready for eating.
http://www.moonconnection.com/full-moon-names.phtml
On rare occasions in a calendar year (as happened in 2010 in time zones east of UTC+07), both January and March each have two full moons, so that the second one in each month is called a blue moon; in this case, the month of February, with only 28 or 29 days, has no full moon.
https://en.wikipedia.org/wiki/Blue_moon
Moon Before Yule, or Long Night Moon. There are usually three full moons in between an equinox and a solstice, or vice versa. Seven times in 19 years, four full moons fall in a single season. In that case, the third of a season’s four full moons is also called a Blue Moon. The next Blue Moon by this definition is happening on May 21, 2016.
http://earthsky.org/astronomy-essentials/full-moon-names
Other variations indicate more signs of full spring, such as Sprouting Grass Moon, Egg Moon, and Fish Moon (common among coastal tribes). May: The Flower Moon. Flowers come into full bloom and corn is ready to plant. Also called the Corn Planting Moon and the Milk Moon.
http://www.moonconnection.com/full-moon-names.phtml
The full moon name often used by Christian settlers is the Moon before Yule. Note that due to the 29-day lunar cycle the exact dates of the full moon move every year. Most seasons have three full moons, but because of the variation some seasons have four full moons.
http://www.moonconnection.com/full-moon-names.phtml
what is full moon of august called
The full moon that appears in August is called the Sturgeon Moon.