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Halo CME

@halocme • 31,119 subscribers

Solar physicist at LMSAL (alum UTkyAst). I believe space weather missions (for safe human space exploration) need a way higher investment than science missions.

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The latest X8.1 flare was eruptive you might have expected. It was a big filament (cool material) eruption. It was also seen as a coronal wave. We need to wait for more coronagraph data to say if/when the associated CME will arrive, but it will probably on Feb 4.

The latest X8.1 flare was eruptive you might have expected. It was a big filament (cool material) eruption. It was also seen as a coronal wave. We need to wait for more coronagraph data to say if/when the associated CME will arrive, but it will probably on Feb 4.

160,257 views

Eruptive M6.9 flare in AR 14513 today. The coronal wave was not very strong, but the associated CME may have been quite extended . We may be hit during 27-28 August.

Eruptive M6.9 flare in AR 14513 today. The coronal wave was not very strong, but the associated CME may have been quite extended . We may be hit during 27-28 August.

13,458 views

Gorgeous eruption that has become a halo CME on its way to Earth (likely arriving on December 9). Quite strong shock, given that proton flux has started to rise,

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Gorgeous eruption that has become a halo CME on its way to Earth (likely arriving on December 9). Quite strong shock, given that proton flux has started to rise,

133,748 views

Today (2026-07-03) two major eruptions occurred successively. First in AR 14479 in associated with an M6.7 flare, then in AR 14478 in associated with a shorter-duration M6.7 flare. Both were accompanied by a coronal wave, which may inform the extension of the eruption.

Today (2026-07-03) two major eruptions occurred successively. First in AR 14479 in associated with an M6.7 flare, then in AR 14478 in associated with a shorter-duration M6.7 flare. Both were accompanied by a coronal wave, which may inform the extension of the eruption.

11,842 views

Close-up view of the Memorial Day X2.8 flare. This is an animation of SDO/AIA 171 Å images. Note loop oscillations right after the eruption, and a subsequent growth (apparent rising motion) of post-flare loops.

Close-up view of the Memorial Day X2.8 flare. This is an animation of SDO/AIA 171 Å images. Note loop oscillations right after the eruption, and a subsequent growth (apparent rising motion) of post-flare loops.

23,951 views

G4 (Kp=8-) storm today, thanks to a strong southward field that lasted almost 10 hours. This must have come from a CME. We (and NOAA Space Weather Prediction Center forecasters) identify the CME to be the one on April 13. This animation contains the CME and its low coronal manifestations.

G4 (Kp=8-) storm today, thanks to a strong southward field that lasted almost 10 hours. This must have come from a CME. We (and NOAA Space Weather Prediction Center forecasters) identify the CME to be the one on April 13. This animation contains the CME and its low coronal manifestations.

10,067 views

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CME Watch for the past 5.5 days, with LASCO C2 difference images side by side with GOES X-ray light curves. We see no clear Earth-directed CMEs, perhaps consistent with recent solar wind data at L1. CMEs not correlated with an X-ray event may be either far-side or stealthy CMEs.
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CME Watch for the past 5.5 days, with LASCO C2 difference images side by side with GOES X-ray light curves. We see no clear Earth-directed CMEs, perhaps consistent with recent solar wind data at L1. CMEs not correlated with an X-ray event may be either far-side or stealthy CMEs.

Halo CME

10,811 views • 1 year ago

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