Friday’s lunar eclipse was not visible in Greece as it passed through North, Central and South America, as well as parts of Australia, Europe and the Americas. Asia.
The partial eclipse was the longest in 580 years. This is called a complete Beaver Moon eclipse.
A partial eclipse occurs 1.7 days before the moon reaches its highest point, the farthest point in its orbit around the Earth, which increases the duration of the eclipse.
This eclipse was not only the longest partial lunar eclipse of the century, but the one with the longest duration. There won’t be one like the one on Friday before 2669, according to the Holcomb Observatory in Indiana, United States.
The total eclipse covered 97% of the full moon, and the total phenomenon – with the Moon entering Earth’s shadow – lasted about six hours.
The longest total eclipse of the 21st century to date occurred in 2018 and lasted for an hour and 43 minutes.
It was preceded by a total eclipse on May 26 of this year, followed by a total lunar eclipse on May 15, 2022, and another on November 7, 2022.
Lunar eclipses occur when the Sun, Earth, and Moon are almost aligned, causing the moon to pass through the Earth’s shadow and thus take on a reddish hue.
When does it happen
A lunar eclipse occurs when the Moon moves in the Earth’s shadow. This can only happen when the Sun, Earth and Moon are exactly or very closely aligned (in syzygy) with the Earth between the other two, and only on a full moon night.
The type and length of an eclipse depends on how close the Moon is to one or other of the nodes in its orbit. A fully eclipsed Moon is sometimes referred to as a blood moon for its reddish color, caused by the Earth completely blocking direct sunlight from reaching the Moon.
The only light reflected from the lunar surface was refracted by the Earth’s atmosphere. This light appears reddish for the same reason as a sunset or a sunrise: Rayleigh scattering of a bluer light.
A lunar eclipse can be seen from anywhere on the night side of Earth. A total eclipse can last up to almost 2 hours, while a total solar eclipse only lasts a few minutes in a given location because the Moon’s shadow is smaller.
Types of lunar eclipses
The shadow of the Earth determines the type of eclipse and is divided into two parts: The shadow and the penumbra.
The penumbral lunar eclipse occurs when the Moon crosses the penumbra of the Earth. The penumbra causes a subtle attenuation of the lunar surface, which is only visible to the naked eye when about 70 percent of the moon’s diameter has immersed itself in the Earth’s penumbra.
The partial lunar eclipse occurs when only part of the Moon enters the shadow of the Earth, while a total lunar eclipse occurs when the entire Moon enters the shadow of the planet.
The total lunar eclipse occurs when the moon falls entirely in the shadow of the earth. Just before full entry, the brightness of the lunar limb – the curved edge of the moon still touched by direct sunlight – will cause the rest of the moon to appear relatively dark.
The central lunar eclipse is a total lunar eclipse in which the Moon passes through the center of the Earth’s shadow, making contact with the antisolar point. This type of lunar eclipse is relatively rare.
A selenelion or selenehelion, also called a horizontal eclipse, occurs where and when the Sun and an eclipsed Moon can be observed at the same time.
[Sources: NASA, Wikipedia]