Recently, for the 2nd time a Super Blue Moon was observed on Raksha Bandhan or Rakhi which is celebrated on the full moon day (that is on Purnima in the month of Shravan).
About Super Blue Moon:
- A Super Blue Moon is a combination of a Supermoon and a Blue Moon.
- It occurs when the Moon is near its closest point to Earth (perigee) while being full, making it a Supermoon.
- For the Moon to be classified as a Blue Moon, it can either be a monthly blue moon (when two full moons appear in one month) or a seasonal blue moon (when four full moons occur within a single astronomical season).
About Super Moon:
- A Supermoon happens when the full moon coincides with the Moon’s closest approach to Earth in its elliptical orbit, known as perigee.
- During a Supermoon, the Moon can appear up to 14% larger and 30% brighter than a typical full moon.
- Approximately 25% of all full moons are Supermoons.
About Blue Moon:
- A Blue Moon is a relatively rare event, defined in two ways:
- Monthly Blue Moon: When two full moons occur within a single calendar month.
- Seasonal Blue Moon: When there are four full moons in an astronomical season instead of the usual three.
- Only about 3% of full moons are Blue Moons.
- Despite its name, a Blue Moon doesn’t actually appear blue in color; the term refers to its rarity. However, atmospheric conditions can sometimes cause the Moon to take on a bluish hue.
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Frequently Asked Question:
What is a Super Blue Moon?
A Super Blue Moon occurs when a Supermoon and a Blue Moon coincide, which makes it a rare celestial event.
How often does a Super Blue Moon occur?
A Super Blue Moon happens approximately every 10 years.
What defines a Blue Moon?
A Blue Moon can either be the second full moon in a calendar month or the fourth full moon in an astronomical season.
Does the Blue Moon actually appear blue?
No, a Blue Moon does not appear blue; the term refers to its rarity, though atmospheric conditions can sometimes give it a bluish hue.
Can a Supermoon and Blue Moon occur separately?
Yes, a Supermoon and a Blue Moon can occur separately and do not always coincide to form a Super Blue Moon.