Sun in White Light and H-alpha - April 17, 2022 - w/ ARs 2993/2994 (JDJ)

Contains: Solar system body or event

Sun in White Light and H-alpha - April 17, 2022 - w/ ARs 2993/2994

Acquisition type: Lucky imaging

Sun in White Light and H-alpha - April 17, 2022 - w/ ARs 2993/2994

Acquisition type: Lucky imaging

The Sun in white light and H-alpha on April 17, 2022 featuring ARs 2993 and 2994 and a really neat prominence.

White light image: Imaged with a Astro-Tech AT60ED, Lunt White Light Solar (Herschel) Wedge, 2.5x Televue Powermate, Baader Solar Continuum Filter 1¼" (540nm), and ZWO ASI290MM. Imaging train was configured to give ~F/15 (FL=900mm).

H-alpha image: Imaged with a Lunt LS50Tha (with feathertouch focuser and ZWO EAF), Lunt LS50C compact double stack filter, 2.5x Televue Powermate, ZWO ASI290MM. Imaging train was configured to give ~F/18. Image capture using Firecapture. Stacking in AutoStakkert3 (best 25% of 1000 frames). Panorama generated from 4 sub images using Microsoft ICE. Processed in ImPPG (sharpening). Prom image generated from surface image using curves adjustment in ImPPG. Combined surface and prom images using GIMP.

Original version: compilation of white light and H-alpha images

Rev B: White light image

Rev C: Surface (Inverted) image combined with prom image

Rev D: Surface image combined with prom (inverted) image

Final
Original
B
C
D

B

Description: White light image

Uploaded: ...

C

Description: H-alpha surface (Inverted) image combined with prom image

Uploaded: ...

D

Description: H-alpha surface image combined with prom (inverted) image

Uploaded: ...

Suburban Astrophotography
Sun in hydrogen 656 nm light
Solar System Imaging
Cloudy Nights

Solar Imaging

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Sun in White Light and H-alpha - April 17, 2022 - w/ ARs 2993/2994

Sun in White Light and H-alpha - April 17, 2022 - w/ ARs 2993/2994

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Sun in White Light and H-alpha - April 17, 2022 - w/ ARs 2993/2994

Sun in White Light and H-alpha - April 17, 2022 - w/ ARs 2993/2994

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