Observation by John Arnold: H-alpha view of six active regions

Uploaded by

John Arnold

Observer

John Arnold

Observed

2025 Dec 03 - 11:26

Uploaded

2025 Dec 04 - 12:14

Objects

The Sun

Equipment

Lunt Ls50THa with eyepiece projection and ASI178MM camera

Exposure

exp. time 1.1 msec, image is a stack of best 250 from 10,000-frame video

Location

Suburban North Leeds

Target name

ARs 4294, 4296, 4298, 4300, 4299, 4295

Title

H-alpha view of six active regions

About this image

About 15 hours after this image was captured, the unremarkable group AR4300 (two-thirds of the way up, on the left) reportedly erupted with an M6-class flare

Files associated with this observation

six AR groups caught at 1126 on 031225.jpg (1.2 MB)

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Ron Johnson

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