Observation by John Arnold: Several active regions in H-alpha, inclu...

Uploaded by

John Arnold

Observer

John Arnold

Observed

2023 Jul 10 - 08:56

Uploaded

2023 Jul 10 - 15:45

Objects

The Sun

Equipment

Lunt Ls50THa with eyepiece projection and ASI178MM camera

Exposure

exp.time 0.2 msec, stack of best 1000 from 15,000-frame video

Location

Suburban North Leeds

Target name

Sunspot groups ARs 3362, 3367, 3366, 3369, 3368, 3358

Title

Several active regions in H-alpha, including post-flare AR3358

About this image

The very inconspicuous AR3358 (on the right, up from centre) reportedly produced an M2-class flare 4 hours before this image was captured.

Files associated with this observation

2023-07-10-0856_9-U-L-Sun_Halpha_AR3366-69-68-58.jpg (1.2 MB)

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