6 hours 28 minutes close up timelapse of AR3282 in H-Alpha on 22 of April 2023 (Arne Danielsen)

6 hours 28 minutes close up timelapse of AR3282 in H-Alpha on 22 of April 2023

Acquisition type: Lucky imaging

What a wonderful day for solar imaging with clear blue skies all day. Not a cloud to bee seen and with very good and consistent seeing and transmission. I started out with a few snapshots in WL before starting a long run of recording for a timelapse of AR3282 in H-Alpha. After the recordings had ran for a while I noticed that the images started to get softer. At first I believed the seeing was detoriating, but when I checked the Seeing Monitor it was about the same as when I started. I then realized that the focus must have shifted - either due to the temperature changes or because the focuser had been slipping. I paused the recording, refocused and re-started the recordings. What a difference that made. It really buggers me that I didn't notice this and was able to correct this earlier, but at least I've learned my lesson till next time.

The time-lapse animation is created from 1001 recordings between 07:12 and 13:40UT on April 22nd 2023. Each recording was 15 seconds long with a framerate of 100 (1500 frames) and 5 seconds delay between each recording. The total amount of data recorded for the timelapse was 2,5TB!

The recordings where obtained using an Altair 152mm D-ERF, Explore Scientific AR152, DayStar Quantum 0.4PE grade H-Alpha and Player One Apollo-M MAX camera mounted on a ZWO-AM5 mount guided with Hinode SolarGuider.

The 200 frames from each recording was stacked in AutoStakkert!3 before they were aligned, sharpened and contrast stretched in ImPPG.

The frames was then cropped and the animation was created in PIPP at 15fps effectively compressing the 6 hour 28 minutes of duration down to just 1 minutes 6 seconds.

I love seeing the outward moving ripples from the sunspots.

Narrowband Solar imaging
Sun in hydrogen 656 nm light
Solar Animations
DayStar Quark and Quantum Filters
Solar System Imaging

	Distinct awarded users	Total awarded images
Image of the day
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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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