Super Blue Moon 2023: What is a blue moon, and how often does it occur?

On August 30th, 2023, skywatchers worldwide will be treated to a rare celestial spectacle: a Super Blue Moon. This event combines two lunar phenomena: a supermoon and a blue moon. But what exactly is a blue moon, and how often does it occur? Let’s explore these questions and more.

What is a blue moon?

Contrary to popular belief, a blue moon is not blue. “blue moon” refers to the second full moon in a calendar month. Most months have only one full moon, but every two to three years, a month will have two full moons. When this happens, the second full moon is called a blue moon.

The term “blue moon” is uncertain, but it may have come from the phrase “once in a blue moon,” which means something that rarely happens. The last time a blue moon occurred was on August 31st, 2022; the next one will be on July 31st, 2024.

How often does a blue moon occur?

Blue moons occur about once every two to three years, on average. This is because the lunar cycle is about 29.5 days, which is slightly shorter than the average month of 30 or 31 days. As a result, there are usually only enough days in a month for one full moon. However, every two to three years, a month will have 31 days, which allows for two full moons.

The frequency of blue moons can vary depending on the length of the lunar cycle and the number of days in a month. For example 2018, there was a blue moon in January and March, but not in February. This was because February 2018 had only 28 days, which was not enough for a second full moon.

What is a supermoon?

A supermoon is a full moon that occurs when the moon is at its closest point to Earth in its orbit, known as perigee. This makes the moon appear larger and brighter than usual. Supermoons can appear up to 14% larger and 30% brighter than a regular full moon.

Supermoons occur about once every 14 months, on average. The last supermoon occurred on May 26th, 2021, and the next one will occur on June 14th, 2022. However, the Super Blue Moon in 2023 will be a rare event, combining both a supermoon and a blue moon.

What to expect during the Super Blue Moon 2023?

During the Super Blue Moon 2023, the moon will appear larger and brighter than usual, as it will be both a supermoon and a blue moon. This will be a rare celestial event, as the last time a Super Blue Moon occurred was on January 31st, 2018.

The best time to view the Super Blue Moon 2023 will be during the moonrise and moonset, when the moon is closer to the horizon. At this time, the moon will appear larger and more orange in color due to the Earth’s atmosphere. It is important to note that the moon will not actually be blue in color, despite its name.

How to view the Super Blue Moon 2023?

You will not need any special equipment to view the Super Blue Moon 2023. However, finding a dark location away from city lights is recommended, as this will provide a better view of the moon. You can also use binoculars or a telescope to get a closer look at the moon’s surface.

It is important to note that the Super Blue Moon 2023 will only be visible in certain parts of the world. If you are unable to view it in your area, you can watch it live online through various astronomy websites and social media channels.

In conclusion, the Super Blue Moon 2023 is a rare celestial event that combines both a supermoon and a blue moon. It will be a spectacular sight for skywatchers around the world, and a great opportunity to witness the beauty of our universe. So mark your calendars and get ready to witness this rare event on August 30th, 2023.