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Lou took this great image of a prom with his Lunt152 double stacked with a Quark

Welcome to Solar Chat! The best forum for Solar Astronomy
Moving forward from solar cycle 24 to 25

Search found 606 matches

by GreatAttractor
Wed Sep 11, 2019 5:53 am
Forum: This is SolarChat !!
Topic: First animation with the Intes
Replies: 13
Views: 232

Re: First animation with the Intes

Thanks, Bart, glad you like it.

As for your setup - this is with a PST etalon, correct? So the Intes can manage the required 200 mm backfocus, or is it some other approach?
by GreatAttractor
Tue Sep 10, 2019 4:31 pm
Forum: This is SolarChat !!
Topic: First animation with the Intes
Replies: 13
Views: 232

Re: First animation with the Intes

Great result, the high resolution is immediately noticeable.
by GreatAttractor
Wed Aug 28, 2019 5:01 pm
Forum: This is SolarChat !!
Topic: Weekend Sunshine and OaCapture testing for Apple
Replies: 13
Views: 346

Re: Weekend Sunshine and OaCapture testing for Apple

I wrote the FlyCapture (i.e. "native" PGR) and IIDC drivers for PlanetaryImager (IIDC a.k.a. DC1394 is a universal protocol supported by all PGR's USB cameras). Marco (PlanetaryImager's author) does publish macOS builds (.dmg files) in the Downloads section, but likely they do not have FlyCapture su...
by GreatAttractor
Wed Aug 28, 2019 4:48 pm
Forum: This is SolarChat !!
Topic: Prom Animation 25th August '19_Colour Added
Replies: 27
Views: 561

Re: Prom Animation 25th August '19_Colour Added

What a catch, Stu. Super-thick curtain blowing in the (solar) wind.
by GreatAttractor
Wed Aug 28, 2019 4:48 pm
Forum: SPoD Archive
Topic: Prom Animation 25th August '19_Colour Added
Replies: 22
Views: 357

Re: Prom Animation 25th August '19_Colour Added

What a catch, Stu. Super-thick curtain blowing in the (solar) wind.
by GreatAttractor
Fri Jun 28, 2019 6:06 am
Forum: Solar Software
Topic: IMPGG tutorial
Replies: 3
Views: 597

Re: IMPGG tutorial

Have a look at Jason's video covering his ImPPG process:

https://www.youtube.com/watch?v=0LpiVFcabbo

There are also a few tutorial links (non-video though) on the home page: https://greatattractor.github.io/imppg/
by GreatAttractor
Sun Jun 23, 2019 7:28 am
Forum: This is SolarChat !!
Topic: Anybody want to share their unprocessed source AVIs
Replies: 32
Views: 1184

Re: Anybody want to share their unprocessed source AVIs

Starry Jack wrote:
Sat Jun 22, 2019 1:54 pm
Because I am greedy (not really) if you have a post processed version of those files and steps well take those as well,
Done - uploaded raw stacks, processed images and ImPPG settings files for each.

My approach:
example1.png
example1.png (143.51 KiB) Viewed 254 times
example3.png
example3.png (83.03 KiB) Viewed 254 times
example2.png
example2.png (198.23 KiB) Viewed 254 times
by GreatAttractor
Sat Jun 22, 2019 11:45 am
Forum: This is SolarChat !!
Topic: Prom Animation Wed 19th
Replies: 12
Views: 493

Re: Prom Animation Wed 19th

Great animation, Stu. Too bad there wasn't a larger prom to capture, but the detailed spicule action is great.
by GreatAttractor
Sat Jun 22, 2019 11:42 am
Forum: This is SolarChat !!
Topic: Anybody want to share their unprocessed source AVIs
Replies: 32
Views: 1184

Re: Anybody want to share their unprocessed source AVIs

Hi Jack,

I'll upload some AVIs overnight. Of course I don't store full material from each time lapse session (100-200 GB), but I keep 1-2 best videos for future experiments.

UPDATE: already uploaded, have fun.
by GreatAttractor
Tue Jun 18, 2019 5:31 pm
Forum: This is SolarChat !!
Topic: small animations of June 17
Replies: 14
Views: 564

Re: small animations of June 17

Wonderful animations. Plasma rain blowing in the wind.
by GreatAttractor
Fri Apr 26, 2019 4:22 pm
Forum: This is SolarChat !!
Topic: Lunt 50mm question
Replies: 18
Views: 759

Re: Lunt 50mm question

I have a Borg helical focuser and a custom T2/C-mount low-profile adapter, see the second picture in this thread: viewtopic.php?t=18394
by GreatAttractor
Mon Mar 25, 2019 6:02 pm
Forum: This is SolarChat !!
Topic: ladies and gentleman the ultimate animation of March 24
Replies: 16
Views: 710

Re: ladies and gentleman the ultimate animation of March 24

Perfect! Those boiling ARs at the limb are the best.
by GreatAttractor
Mon Mar 25, 2019 6:02 pm
Forum: SPoD Archive
Topic: ladies and gentleman the ultimate animation of March 24
Replies: 11
Views: 657

Re: ladies and gentleman the ultimate animation of March 24

Perfect! Those boiling ARs at the limb are the best.
by GreatAttractor
Mon Mar 25, 2019 7:13 am
Forum: Solar Software
Topic: New version of ImPPG
Replies: 6
Views: 508

Re: New version of ImPPG

Alexandra, which Windows version do you use?
Did you perhaps unpack ImPPG to a folder containing the previous version? If so, try unpacking to a fresh folder and running from there.
by GreatAttractor
Tue Mar 12, 2019 6:48 pm
Forum: This is SolarChat !!
Topic: A Grand Post-Processing Thread!
Replies: 9
Views: 557

Re: A Grand Post-Processing Thread!

I think I learned about the L-R deconvolution from Michael Wilkinson on SGL forum. It seemed like a straightforward enough (and fun) to implement method, and at that time I needed something more convenient than R6 for batch processing. The tutorial links on ImPPG's homepage should be useful. In the ...
by GreatAttractor
Mon Mar 11, 2019 9:03 pm
Forum: This is SolarChat !!
Topic: A Grand Post-Processing Thread!
Replies: 9
Views: 557

Re: A Grand Post-Processing Thread!

Bruce, it is my understanding that for (our) solar imaging, when sharpening a stack, we need to remove the blurriness caused by 1) atmospheric turbulence (even though the stacker tries to choose the sharpest image fragments, it has to use some blurrier ones too), and 2) shift-and-add procedure (whic...
by GreatAttractor
Fri Mar 08, 2019 8:56 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Periodic table of sensors
Replies: 2
Views: 383

Periodic table of sensors

FLIR (formerly Point Grey) have made a “periodic table” of camera sensors with data on 120 models “from classic CCDs to the latest CMOS technology”: https://2.bp.blogspot.com/-H7FKWkZdizQ/XBp6DZM9dtI/AAAAAAAAXyw/euZLBSLxkJ4IiaQbNPrcEMTbbZIMLE8jgCLcBGAs/s640/Periodic%2BTable%2Bof%2BSensors.png Direct...
by GreatAttractor
Fri Mar 01, 2019 5:58 pm
Forum: Solar Scope Modifications
Topic: lunt 50 mod
Replies: 35
Views: 6962

Re: lunt 50 mod

even the Lunt 50, like the Lunt 60., seems to have a objective with single lens Hmm, interesting. Where does the image come from? I just double-checked my specimen (purchased in 2015) and it seems to have a doublet. I mean I didn't disassemble it, but it shows two upright minified reflections of my...
by GreatAttractor
Thu Feb 07, 2019 9:24 pm
Forum: Solar Software
Topic: ImPPG version 0.5.4
Replies: 15
Views: 1319

Re: ImPPG version 0.5.4

Have fun, everyone!

And don't forget to check out the new improved "About ImPPG..." dialog ;)
by GreatAttractor
Tue Feb 05, 2019 7:11 pm
Forum: Solar Software
Topic: ImPPG version 0.5.4
Replies: 15
Views: 1319

ImPPG version 0.5.4

Main page: http://greatattractor.github.io/imppg/ Download from: https://github.com/GreatAttractor/imppg/releases/tag/v0.5.4 As requested by one of the users, ImPPG now has: New features Configurable look of the tone curve editor Enhancements Last loaded settings file name shown in toolbar All color...
by GreatAttractor
Thu Jan 24, 2019 7:54 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What camera?
Replies: 23
Views: 2006

Re: What camera?

Good luck with the setup, Alexandra.
PS here is a piccie of the Celestron with the Aries ERF finally fitted
This is shaping up to be a very interesting season!
by GreatAttractor
Thu Nov 22, 2018 8:05 pm
Forum: This is SolarChat !!
Topic: Citizen Science
Replies: 24
Views: 2110

Re: Citizen Science

Hi Stu, I love the idea. Here are some of mine, technical details are in the Astrobin descriptions. Sunspot animations in white light: https://astrob.in/23205/D/rawthumb/gallery/get.jpg?insecure https://astrob.in/41790/0/rawthumb/gallery/get.jpg?insecure Flare in The Monster (spectacular loops, but ...
by GreatAttractor
Sun Sep 23, 2018 11:20 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Grasshopper3 how to ??
Replies: 8
Views: 1044

Re: Grasshopper3 how to ??

You need something like this: Baader C-Mount/1.25" adapter, then you can plop the camera into any telescope. FireCapture should work fine for video acquisition.
by GreatAttractor
Sat Sep 08, 2018 7:36 am
Forum: Solar Scope Modifications
Topic: Lunt LS50THa modification to 200 mm aperture
Replies: 7
Views: 1170

Re: Lunt LS50THa modification to 200 mm aperture

Back focus = distance from the rear of the OTA to the OTA's focal plane. Etalons, telecentrics etc. need to be inside this distance. RC has quite a lot, SCT somewhat less, and adding a focal reducer moves the focal plane in, so reduces back focus.
by GreatAttractor
Fri Sep 07, 2018 3:11 pm
Forum: Solar Scope Modifications
Topic: Lunt LS50THa modification to 200 mm aperture
Replies: 7
Views: 1170

Re: Lunt LS50THa modification to 200 mm aperture

I would fear the back focus would be insufficient (Lunt 50 needs some ~180 mm). With an SCT it would be easier to simply attach a PST (which works at f/10).