ChibamberSun in H-alpha on July 25, 2025

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I happened to catch a C-class solar flare (4149, C7.4).

#124104
2025年7月25日 9時55分1秒
RAW16, Gain 200, 2 ms x 100 frames with ASICap 2.16.0, followed by 20% stacking with ASIVideoStack 1.16.0
Funabashi, Chiba
望遠鏡：その他 Acuter Optics Phoenix
カメラ：ZWO ASI432MM
Vixen 2x Barlow lens IR/UV cut filter Sky-Watcher EQ6R
800mm
L-R deconvolution and tone curve adjustment with ImPPG 2.0.0
太陽
太陽