Blue moon (Harvest Moon) 31st October
When the full moon is seen twice in the same month of a year, the second full moon is called Blue-Moon. Although the name is Blue-Moon or Blue Moon, this moon has nothing to do with the color blue. However, due to the lunar eclipse on the same day, the moon turns red. During a lunar eclipse, the shadow of the earth falls on the moon. As a result, red or orange color can be seen on the moon at that time.
Harvest Moon
The Harvest Moon is notable among the well-known names of the full moon. This is mainly the time of harvest in late October. This moon has been given such a name for harvesting crops. This time is saved by harvesting. It is also called Corn Moon. This moon usually rises in the sky a little sooner and is a little brighter due to its proximity to the autumn equatorial region. Due to the long stay of the moon in the sky, farmers can harvest even at night. Barley is harvested at this time, which is why it is also called Barley Moon.