Contains:  Solar system body or event
Sun in Halpha - November 29, 2020 w/ post flare loops, JDJ

Sun in Halpha - November 29, 2020 w/ post flare loops

Acquisition type: Lucky imaging
Sun in Halpha - November 29, 2020 w/ post flare loops, JDJ

Sun in Halpha - November 29, 2020 w/ post flare loops

Acquisition type: Lucky imaging

Equipment

Loading...

Acquisition details

Loading...

Description

The Sun in H-alpha on November 29, 2020 with a really nice post-flare loops. Earlier in the day an M4.4-class solar flare occurred, the largest in more than 3 years.

See: https://spaceweather.com/archive.php?view=1&day=29&month=11&year=2020

Imaged with a Lunt LS50Tha, 2.5x Televue Powermate, ZWO ASI290MM. Imaging train was configured to give ~F/18. Image capture using Firecapture (see below for exposure settings). Stacking in AutoStakkert3 (best 25% of 1000 frames). Processed in Registax (wavelet sharpening). Surface and prominence images combined using GIMP.

Surface image:

FPS (avg.)=77

Shutter=1.000ms

Gain=250 (41%)

Histogramm=98%

Prom image:

FPS (avg.)=36

Shutter=25.00ms

Gain=250 (41%)

Histogramm=100%

Comments