On the night of 7-8 September 2025, people across the Earth will witness one of the most spectacular astronomical phenomena — a total lunar eclipse, also known as a "Blood Moon". According to astronomers' calculations, around 88% of the world's population will have the opportunity to observe at least part of the total phase, making it a truly global phenomenon.

Mechanism and Uniqueness of the Phenomenon

A total lunar eclipse occurs when the Earth is positioned exactly between the Sun and the Moon, casting its shadow onto its natural satellite. Unlike a solar eclipse, a lunar eclipse is visible from anywhere on the night side of the Earth. The uniqueness of the September 2025 eclipse lies in its depth, or magnitude, which will be 1.362. This means the Moon will plunge deep enough into the dark central part of the Earth's shadow (the umbra) and take on an intense copper-red hue.

Visibility and Timing by Region

The best conditions for observing its entire duration will be in most of Russia (excluding the Far East), Australia, Central Asia, Japan, and Eastern Africa. Residents of Europe will witness the Moon rising already immersed in shadow, creating a spectacular view of a red disc appearing above the horizon. Observers in North and South America will miss this event entirely.

As with all global astronomical events, the eclipse occurs at the same moment worldwide, with only the local time differing.

For other Russian cities, the time of the total phase will shift according to their time zones. For example, in Yekaterinburg (UTC+5), it will last from 22:30 to 23:52, and in Vladivostok (UTC+10) it will be from 03:30 to 04:52 (on September 8).

Accompanying Astronomical Event

Adding to the spectacle, the “blood” Moon will appear close to Saturn in the evening sky. The yellowish "star" next to the crimson satellite will actually be the ringed giant planet. On 8 September at 20:10 MSK, the Moon and Saturn will be separated by only about 3.5°.

Observation Tips

Observing a lunar eclipse requires no special equipment or eye protection, unlike watching a solar eclipse. The phenomenon will be clearly visible to the naked eye. However, using binoculars or a telescope will provide a more detailed view of the colour change and contrast on the lunar surface.

For precise observation planning, it is recommended to use astronomical applications. They provide interactive visibility maps, precise timings of phases for a specific location, reminders, and identification of objects in the sky.

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