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10 november 2025, 15:54 мск

The mass ejection from the new flare will catch up with and absorb the plasma cloud ejected yesterday.

Solar plasma ejection on November 10, 2025. Time: approximately 13:00 Moscow time.
Solar plasma ejection on November 10, 2025. Time: approximately 13:00 Moscow time.

The velocity of the new plasma ejection, measured near the Sun, is apparently at least 1,200 km/s, almost twice the velocity of yesterday's event (720 km/s). This means that the gas cloud ejected today will overtake the currently propagating plasma ejection from yesterday's X1.79 flare, and they will arrive at Earth together—preliminary estimates indicate the same, at the junction of November 11th and 12th, meaning possibly as early as tomorrow evening.

The presence of a frontal plasma ejection has now been confirmed visually. Due to its high velocity, the gas cloud has already moved more than 10 million km from the Sun in three hours and is clearly visible in images from coronagraphs observing the circumsolar region. However, there was no doubt about the presence of an ejection toward Earth, and its speed, which has now been measured, was of primary interest.

So far, strictly speaking, despite the very strong flares of recent days, there have been no extreme consequences for Earth. Very strong magnetic storms (record-breaking for the year) were expected on November 7, but the solar storms only briefly touched the Earth. The G2-G3 magnetic storms that actually occurred can be considered a godsend. Yesterday's surge was also unimpressive, proving slow and extending significantly above the plane of the planets. In this regard, Earth will now have to test its luck for the third time in a row over the next two or three days. Perhaps it will succeed. However, it remains to be seen what the mathematical models say in a few hours.

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Laboratory of Solar Astronomy,SRI RAS

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