Contains:  Solar system body or event

46 minutes timelapse of AR13751 in CaK 18th of July 2024

Acquisition type: Lucky imaging

46 minutes timelapse of AR13751 in CaK 18th of July 2024

Acquisition type: Lucky imaging

Equipment

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Acquisition details

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Description

Timelapse animation created from 134 recordings between 08:59 and 09:45UT on July 18th 2024. Each recording was 18 seconds long with a framerate of 135fps (2430 frames) and 2 seconds delay between each recording.

The recordings where obtained using a using a TS-Optics ED 102mm f/11, with an Altair Astro 115mm TRIBAND H-Alpha D-ERF, Lunt Calcium K Module B1200 2" Straight-Through Tube, Baader Q-Barlow 2.25x / 1.3x (working at 2.25x giving 2524mm efl and f/24.75) and Player One Mars-M mounted on a ZWO AM5 and guided with Hinode SolarGuider.

The best 400 frames from each recording was stacked in AutoStakkert!4 before they were aligned and sharpened in ImPPG. The images was then contrast-stretched in Adobe PhotoShop before deflickering in GBDeflicker. Timestamp annotation was added using IrfanView and the final animation which was created using PIPP at 15fps. This effectively compressed the 46 minutes of duration down to just 8 seconds.

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