July15 filament explosion
Taken by Giorgio Rizzarelli on July 15, 2025 @
Trieste, Italy
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: Unavailable
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Details:
The current months are at the center of the 11-year solar cycle (began in December 2019): Over the past 5.5 years the magnetic field lines have stretched to right along the faster-rotating equator, forming long plasma filaments, now on the edge of the breaking point. Many long filaments appeared in June and various exploded in July, at least partially. This timelapse from July 15th, spanning about two hours, luckily catched a partial filament explosion, and also (about halfway through the video) a prominence on right border snapping as a spring. The full-disk version (noisy since compressed to low quality to be uploaded here) also shows, among other things, a canyon of fire (barely visible as a few bright spots) due to a large filament explosion occured just before this timelapse (the SDO timelapse of this event was featured on Spaceweather.com homepage that day: https://spaceweather.com/archive.php?view=1&day=15&month=07&year=2025). The last gif (reproducing the red color of the chromosphere) was captured before the latter event, and shows that filament unsettled, in addition to a C2 flare in 4142 (a rare equatorial AR). Seeing 2/5, transparency 4/5. Lunt60 Hydrogen-alpha scope, Neptune-M camera. Red chromosphere artificially colorized. Timelapse speed 2000x (one frame captured every 2 minutes, each stacked from the best 25% of a 1000-frames movie). Software: Autostakkert, ImPPG, Registax, Photoshop.
Photographer's website:
No URL provided.
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