Contains:  Solar system body or event
Sun in Halpha - November 23, 2020 (w/ AR 2785 & 2786), 



    
        

            JDJ

Sun in Halpha - November 23, 2020 (w/ AR 2785 & 2786)

Acquisition type: Lucky imaging
Sun in Halpha - November 23, 2020 (w/ AR 2785 & 2786), 



    
        

            JDJ

Sun in Halpha - November 23, 2020 (w/ AR 2785 & 2786)

Acquisition type: Lucky imaging

Acquisition details

Date: Nov. 23, 2020

Time: 16:12

Frames: 250

FPS: 76

Focal length: 875

Seeing: 2

Transparency: 6

Resolution: 1838x1062

File size: 5.6 MB

Locations: Home, Silver Spring, Maryland, United States

Data source: Backyard

Description

The Sun in H-alpha on November 23, 2020 including AR2785 and AR2786. The is one big sunspot in AR2786, should be a great show over the next week...

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.)=76

Shutter=1.000ms

Gain=250 (41%)

Histogramm=93%

Prom image:

FPS (avg.)=72

Shutter=12.50ms

Gain=250 (41%)

Histogramm=100%

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