Observation by John Arnold: Flaring of sunspot AR4140

Uploaded by

John Arnold

Observer

John Arnold

Observed

2025 Jul 12 - 08:33

Uploaded

2025 Jul 13 - 20:34

Objects

The Sun

Equipment

Skywatcher 82ED Evolux refractor, Daystar Chromosphere Quark, 0.5x focal reducer, ASI678MM camera

Exposure

exp. time 0.032 msec, each frame of gif is best 100 of 2000-frame video

Location

Suburban North Leeds

Target name

Sunspot group AR4140

Title

Flaring of sunspot AR4140

About this image

Animation spans 0833 to 0850 UT. Activity was already well underway when I spotted it.

Files associated with this observation

AR4140 0833-0850 120725.gif (535.1 kB)

Like this image

Dominic Ford, Nicholas Freeman, Dawson, Jonathon Elliott, James Weightman

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