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Oxygen Smudge, 2026-03-21

Дата публикации: 29-03-2026 16:40:38

As I explained here, I keep seeing >>smudges<< in oxygen O I 7772. Smudges, ie regions that are darker than expected based solely on the location of flares and plages, yet seem to be related to whatever is happening in extreme UV. Here’s this day’s smudge.... Read More

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As I explained here, I keep seeing >>smudges<< in oxygen O I 7772. Smudges, ie regions that are darker than expected based solely on the location of flares and plages, yet seem to be related to whatever is happening in extreme UV. Here’s this day’s smudge.

2026-03-21-1244 solar disk, oxygen divided by continuum (and some other math), showing a smudge

2026-03-21-1244 solar disk, oxygen divided by continuum (and some other math), showing a smudge

2026-03-21-1244 smudge marked

2026-03-21-1244 smudge marked

2026-03-21-1244, Fe I 7781, reconstruction, local constrast

2026-03-21-1244, Fe I 7781, reconstruction, local constrast

2026-03-21-1244, Fe I 7781, reconstruction, global curved

2026-03-21-1244, Fe I 7781, reconstruction, global curved

2026-03-21-1244 O I 7772, reconstruction, global curved

2026-03-21-1244 O I 7772, reconstruction, global curved

continuum, ~7770, reconstruction, global curved

continuum, ~7770, reconstruction, global curved

HMI reference

AIA 1700 reference

AIA 1600 ref

AIA 211 reference

AIA 335 ref

SUVI 284 ref


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