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09 november 2025, 15:06 мск

Early data from space coronagraphs confirms frontal ejection

Plasma ejection from the X1.79 solar flare of November 9, 2025. Combined video based on data from the LASCO/C2 and LASCO/C3 instruments.

The video shows the first early data from coronagraphs (instruments that observe the circumsolar region). The ejection in these images is recorded as an expanding cloud of gas flying toward the observer. Based on the images, the ejection is frontal, propagating along the Sun-Earth line with a positional shift of approximately 20 degrees toward the north pole of the solar system.

The bulk of the material is currently concentrated in the upper part of the plasma cloud; a particularly high gas concentration is observed in the northeast (upper left), where the flare destroyed a large prominence, the remnants of which partially fell into interplanetary space. The lower part of the ejection is primarily composed of compressed magnetic fields with a low material density.

Current observations so far retain a fairly complex tree of possible variants, the main source of uncertainty in which is the clearly uneven distribution of matter within the gas cloud. In a few hours, more precise data from the coronagraphs will be available, and the first mathematical models should also be available.

The video is the result of a combination of observations from several instruments. The artifacts seen in it are primarily the result of this stitching.

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Laboratory of Solar Astronomy,SRI RAS

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