150 x 0.005" ISO/Gain: 300 - Player One Photosphere 7,5 nm 540
Chelyabinsk, Russia
May 30th, 2025
413
2
Sunspot groups on the morning of 05/30/2025 at 09:12 UTC+05. From left to right - 4100, 4101. SvBony SV503 102ED, Celestron Advanced GT, film aperture filter, Barlow SV113 3x, Player One Photosphere 7.5 nm 540 nm filter, SvBony SV305M Pro - 5ms gain 300. AutoStakkert - 150/3000 fr, Photoshop.
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