Sorry I've been absent for so long folks. Things have gotten kind of busy around here
On the 18th of June I had some decent seeing and was able to produce a set of images taken at approximately 15 minute intervals over 2 1/4 hours. I hadn't noticed the extent of the activity until I started processing the images. The images are all individual frames from the .ser file, not stacks. In some places, the filament moved so quickly that a stack could not have captured it. Alas, I was having camera issues and turned off my time stamp in the process of straightening things out, then I forgot to turn it back on again, and the acquisition was controlled by seeing conditions so the time interval between images is not consistent.
Lunt LS80 single stack
Baader VIP barlow at 2x
ZWO ASI174MM
Astro Hutech Hinode guider
I have included the guider in my equipment list because it has made my image acquisition about 100x easier. No more fussing with alignment! No more babysitting the exposures! Forget the cost. It makes making solar images worthwhile again.
Another equipment note. The Baader VIP barlow at 2x gives me no Newton's rings at all. My TeleVue 2.5x Powermate gives me strong rings. Just an observation at this point.
Animation from 2022_06_18
- marktownley
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Re: Animation from 2022_06_18
These look great to me Bruce! Ditch the 2.5x PM and use the Baader instead
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
- rigel123
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Re: Animation from 2022_06_18
Great animation to show the movement in that filament!
Warren
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Orion ED80T CF
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Lunt CaK BF1200
Lunt WL Wedge
Baader Photographic Film
ASI174MM
Skyris 236M
Player One Saturn-M SQR
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Re: Animation from 2022_06_18
Thanks all
It's clear that, at least in this case, 15 minutes is too long for individual frames in an animation. What sort of interval is commonly used? Recorded as a series of individual files or as a big file that is split up afterward? I find the animations fascinating, but a lot of work. Balancing the light between frames seems to be one of the bigger issues for me. Any suggestions? Much appreciated
Bruce G
It's clear that, at least in this case, 15 minutes is too long for individual frames in an animation. What sort of interval is commonly used? Recorded as a series of individual files or as a big file that is split up afterward? I find the animations fascinating, but a lot of work. Balancing the light between frames seems to be one of the bigger issues for me. Any suggestions? Much appreciated
Bruce G
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Re: Animation from 2022_06_18
Typically you will see people catching frames anywhere from every 15 seconds to every minute. I typically capture 500 frames every 30 seconds, but then for an animation of your length that would be a lot of files to work with! In this case every 15 minutes worked because the filament was not extremely active. But I have seen events that only last 5 minutes that are very dramatic so you could miss the whole thing! Balancing the light can be a real issue particularly if there are high clouds that constantly change the histogram. I found a way to somewhat balance the frames with Pixinsight and the Batch Linear Fit Script and I did a quick tutorial here.Bruce G wrote: ↑Sun Jul 03, 2022 12:39 pm Thanks all
It's clear that, at least in this case, 15 minutes is too long for individual frames in an animation. What sort of interval is commonly used? Recorded as a series of individual files or as a big file that is split up afterward? I find the animations fascinating, but a lot of work. Balancing the light between frames seems to be one of the bigger issues for me. Any suggestions? Much appreciated
Bruce G
https://youtu.be/IKZmipr0mYs
Warren
Lunt LS60T DS
Orion ED80T CF
Meade ETX LS6
Lunt CaK BF1200
Lunt WL Wedge
Baader Photographic Film
ASI174MM
Skyris 236M
Player One Saturn-M SQR
https://www.astrobin.com/users/rigel123/
Lunt LS60T DS
Orion ED80T CF
Meade ETX LS6
Lunt CaK BF1200
Lunt WL Wedge
Baader Photographic Film
ASI174MM
Skyris 236M
Player One Saturn-M SQR
https://www.astrobin.com/users/rigel123/
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Re: Animation from 2022_06_18
Really nice, Bruce. Animations are so interesting and this one is no exception.
Stu.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Animation from 2022_06_18
Very good animation, Bruce!
Seems I need to look for Hinode somewhere on the shelves and get to grips to work with Pixinsight. Thanks for the tutorial, Warren!
Leo
Seems I need to look for Hinode somewhere on the shelves and get to grips to work with Pixinsight. Thanks for the tutorial, Warren!
Leo