A total lunar eclipse, often called a “Blood Moon” due to the reddish hue the Moon takes on during totality, will be visible across much of the Americas on . This event offers a compelling opportunity for skywatchers, as it will be the only total lunar eclipse of the year and the next one won’t occur until 2028.
Understanding Lunar Eclipses
A lunar eclipse happens when the Earth passes directly between the Sun and the Moon, casting a shadow on the lunar surface. This can only occur during a full Moon. The shadow is comprised of two parts: the penumbra, which is a lighter, outer shadow, and the umbra, the dark central part of the shadow. A total lunar eclipse occurs when the Moon passes entirely into the Earth’s umbra.
When and Where to Observe the Eclipse
The eclipse will be visible from eastern Asia, Australia, New Zealand, the Pacific region, and western North America. Partial and penumbral phases will be visible from much of the Americas and Asia. Specifically, the total phase of the eclipse will be visible in the evening from eastern Asia and Australia, throughout the night in the Pacific, and in the early morning in North and Central America and far western South America. The eclipse is partial in central Asia and much of South America. It will not be visible from Africa or Europe.
The duration of the eclipse is significant. The entire event, from the beginning of the penumbral eclipse to its end, will last approximately 5 hours and 39 minutes. The period of totality – when the Moon is completely within the Earth’s umbra – will last for 58 minutes. This extended duration provides a prolonged spectacle for observers.
Why Does the Moon Turn Red?
The characteristic reddish color of the Moon during a total lunar eclipse is often referred to as the “Blood Moon.” This phenomenon occurs because some sunlight is bent through the Earth’s atmosphere and scattered onto the Moon’s surface. Shorter wavelengths of light, like blue and violet, are scattered away, while longer wavelengths, like red and orange, are able to pass through. This represents the same reason why sunsets and sunrises appear red.
Observing the Eclipse
Observing a lunar eclipse is remarkably accessible. Unlike solar eclipses, which require specialized eye protection, lunar eclipses can be viewed safely with the naked eye. A clear line of sight to the Moon is all that’s required. For an enhanced viewing experience, observers are encouraged to find a location away from bright city lights. Binoculars or a telescope can further enhance the view, allowing for a more detailed observation of the subtle changes in brightness and color on the lunar surface.
For those interested in capturing the event photographically, cameras with zoom lenses or astrophotography adaptations can be used to record the more subtle phases of the eclipse, including the moments when the Moon enters and exits the Earth’s umbra.
What to Expect During the Eclipse
The eclipse unfolds in several stages. It begins with a penumbral eclipse, where the Moon passes through the Earth’s outer shadow, causing a slight dimming. This is followed by a partial eclipse, where a portion of the Moon enters the umbra. Finally, the total eclipse occurs when the entire Moon is immersed in the Earth’s darkest shadow. During totality, the Moon will appear reddish-orange. After totality, the eclipse progresses through the partial and penumbral phases in reverse order.
The magnitude of this eclipse is 1.15, meaning that the Moon will be completely inside the Earth’s shadow at the maximum point of the eclipse.
Future Lunar Events
The total lunar eclipse on , is the only one scheduled for the year. The next total lunar eclipse will not occur until 2028, making this event particularly noteworthy for astronomy enthusiasts. This event provides an opportunity for both amateur and professional astronomers to study the Earth-Moon system and engage in collective observation and educational activities.
Lunar eclipses are safe and accessible astronomical events, offering a beautiful and educational experience for all. The upcoming eclipse on , promises to be a memorable celestial display.
