The term “Blue Moon” refers to the second full moon in August which is irrelevant to the color of the Moon. The previous full moon, which was also a supermoon, occurred on August 1. The moon will be completely illuminated and will be on the opposite side of the earth from the sun.
On August 30-31, 2023, there will be a full moon and a monthly blue moon. It is also a supermoon, the third in a row, and the nearest supermoon of 2023. (Photo: John Jardine Goss/ EarthSky)
This is the second of three supermoons scheduled for 2023. During this supermoon, the Moon will be at its closest point to Earth in its orbit, around 363,711 kilometers away. The Moon image may look 7% bigger and brighter than a normal full Moon.
The supermoon phenomenon is relatively uncommon, occurring three to four times every year on average. However, “Blue Moons” are rare, with just one out of every 33 supermoons meeting the criterion.
Astronomy enthusiasts will have to wait until 2037 to see the next “Blue Moon”, according to NASA.
The next supermoon will arrive at 8:35 a.m. (Vietnam time) on August 31. Because this is not a good time to see the supermoon, people in Vietnam can only see it at its most rounded condition on the nights of August 30 and August 31.
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Source: Vietnam Insider