This weekend (21st and 22nd), we will have the so-called Blue Moon in the sky. Although the nomenclature is inadequate, as our natural satellite will not change color, the “phenomenon” is considered relatively rare, and it is worth taking a look at the sky.
After the Perseid meteor shower that lit up the night sky in mid-August, and Saturn and Jupiter giving us their maximum brightness, it’s the turn of the Blue Moon. The term, according to the American website Inverse, is used when there is an extra Full Moon in a certain period of time.
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Astrological Blue Moon: when there is a second Full Moon within the same month. According to the website, our natural satellite takes 29.5 days to circle the Earth. So if there is a Full Moon on the first day of the month, we will have a second at the end (except in February of course)
Seasonal Blue Moon: It is an extra Full Moon in one of the four astronomical seasons (Autumn Equinox, Winter Solstice, Spring Equinox and Summer Solstice), explains Inverse. Each season usually has three Full Moons and if there are four, then the third (not the fourth) is also called the Blue Moon.
The one we’ll see this weekend will be seasonal. According to the American website, it occurs about once every 2.7 years, so it is considered relatively rare.
When to observe the Blue Moon
The August Blue Moon will be at its fullest on Sunday, August 22nd, at 9:02 am (morning). Unfortunately, the morning is usually not the best time to see the Moon, but astronomy lovers can rest easy, reveals Inverse: the Blue Moon will appear in the night sky in its most glorious form on Saturday nights (21/8) and Sunday (22/8).
No instrument is needed, as it will be a traditional Full Moon. Still, it is recommended to observe our natural satellite after it has completely darkened – in winter, the sunset occurs around 18:00.
Of course you have to hope that the night sky is clear, cloudless. Another tip is to look for an elevated place, to have a broader view of the Blue Moon.
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