August's Night Sky Will Shine Bright With A Supermoon Blue Moon, Says NASA

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The August full Moon, set to be visible on 19 August, will be a blue supermoon, as per NASA. In India, it will rise at 18:57 IST and set at 06:10 on 20 August. This full Moon coincides with Raksha Bandhan, known locally as Rakhi Purnima. North American tribes have various names for it, including Sturgeon Moon and Grain Moon.

NASA's retired Program Executive Gordon Johnston explains in a blog post, "Although it will not look blue, as the third full Moon in a season with four full Moons, this will be a Blue Moon. The first recorded use of 'Blue Moon' in English dates from 1528.

Speculations on the origin of the term include an old English phrase that means 'betrayer Moon' (because it led to mistakes in setting the dates for Lent and Easter). Or it may be a comparison to rare events such as when dust in the atmosphere makes the Moon actually appear blue. Since the 1940's the term 'Blue Moon' has also been used for the second full Moon in a month that has two full Moons." For the upcoming Blue Moon, the former meaning applies and not the latter.

What You Need To Know About Supermoons

There isn't a strict scientific definition for what constitutes a supermoon. Different organisations have varying criteria for when the Moon is closest to Earth during its full phase. Despite being nearer to Earth, any size difference compared to a regular full moon is not noticeable without instruments. New Supermoons exist too but don't garner much attention since they aren't visible.
Astronomer Fred Espenak's calculations show that there will be four supermoons between August and November in 2024. These celestial events are fascinating but often misunderstood due to their subtle visual differences from regular moons.

Blue Moon: Origin And Significance

The term 'Blue Moon' has evolved over centuries. Initially recorded in 1528, its origins are debated. Some believe it comes from an old English phrase meaning 'betrayer Moon,' while others think it's linked to rare atmospheric conditions making the moon appear blue.
In modern times, 'Blue Moon' can refer to either the third full moon in a season with four or the second full moon within a calendar month containing two full moons. For this upcoming event, it's classified under the seasonal definition.
This August supermoon aligns with cultural festivities like Raksha Bandhan in India, adding significance beyond its astronomical interest. Known by various names across cultures, each name reflects local traditions and seasonal changes.
While supermoons capture public imagination due to their perceived larger size and brightness, these differences are minimal without telescopic aid. Nonetheless, they offer an excellent opportunity for skywatching and appreciating our natural satellite's beauty.
The August supermoon rising around sunset and setting at dawn provides ample time for observation. Whether you're celebrating Rakhi Purnima or simply enjoying a night under the stars, this celestial event promises a memorable experience.
Mark your calendars for this unique astronomical event on 19 August. Whether you're an avid skywatcher or just curious about celestial phenomena, witnessing a blue supermoon is always special.