This Sunday night, witness a rare celestial event as the sun, Earth, and moon align, creating a total lunar eclipse visible across several continents.
During this event, known as a “blood moon,” the lunar surface will turn a deep red as it passes through Earth’s darkest shadow, the umbra. This phenomenon is particularly significant for UK viewers who have not seen a total eclipse since 2022. The next opportunity will be in August 2026.
Timing the Total Lunar Eclipse
In the UK, the eclipse begins with the moon still below the horizon. As it rises, the moon will be fully eclipsed. The Royal Observatory suggests that 7:33 PM on Sunday is the ideal time for viewing.
By 9:55 PM, the moon will start emerging from Earth’s shadow. UK observers will have approximately two hours and 22 minutes to witness the event. Meanwhile, full visibility is expected in easternmost Africa, the Middle East, most of Asia, and western Australia.
Science Behind the Red Moon
As the moon enters Earth’s umbra, it loses direct sunlight and receives refracted light from Earth’s atmosphere. Shorter blue light wavelengths scatter, while longer red wavelengths pass through, imparting the moon with its unique red hue.
NASA notes that atmospheric conditions, such as dust or clouds, may intensify the red color, an effect similar to the glow during sunrises and sunsets.
Observation Tips for the Blood Moon
The blood moon is viewable with the naked eye. Astronomer Tom Kerss suggests the following tips:
- Understand your horizon: Look for the moon in the west and southwest for the best views.
- Use a telescope to observe lunar details closely.
- Photographers should use tripods or remote shutter lenses for optimal shots.
In urban areas, find elevated spots to avoid obstructions as the moon will appear low on the horizon.
Weather Outlook for Eclipse Night
The Met Office forecasts clear skies over much of England and Wales, ideal for viewing the eclipse. However, northern England and Scotland might experience clouds and rain, affecting visibility throughout the night.
