Prominences Only


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Left click on images to play, right click to download astromovie except otherwise mentionned


A superb ring of Fire !

As shown at left, GIF animation may not have top resolution,
it is suggested to see or download the 1H30 Astromovie using one of those links : IPhone, IPod, WMV, XVID, MOV

For explanation & more see here



Sunspot AR2290 explodes into a M 3.4 solar flare !

GIF is not so good ... Left or Right click here to see / download the high quality AVI.

See more at picture table below ...


click here to see the image at left in full size ... click here to see the local GIF animation (31MB) ...

Recorded with a PST-DS and DMK31AU03AS camera. This shows about 5 hours accelerated in a few seconds. Each movie of 60s was registered with Autostakkert2!, then about 300 PNGs were registered with RegiStax5 and saved as a movie. This is a crop around the filament and sunspot AR2010 showing how it disappears !

125808 UT

Recorded in .SER with Firecapture. Modified PST on ED80 + 10cm ERF + DMK21.AS camera. Registered with Autostakkert2!, conv70% mode, then resulting PNGs were registered with RegiStax5 and saved as a movie. Final crop and framerate (3 fps) with Virtualdub.

Still shown RegiStax6 + masking and fianl coronograph effect with LuSOl3D ... full size click here.
What is seen is the remnant of the eruption of a large filament :
For more info see this spaceweather page :


17h45-20h01 UT
Realised with a Toucam Pro, B&W sensor and 2x barlow, 10 fps, integration 100 frames, 1 image every 50,
Registration and AVI output Registax4, Cropping VirtualDub, Colorisation + gif output Aviedit

Fluorite 100/900 PerlVixen, SolarMax90, 2x & 2" Televue Barlow, mounted on LX200 12".


Large prominence !
Download in Low or High contrast
Realised with a Toucam Pro, B&W sensor and 2x barlow 1012-1206UT 1 image every 20s
Registration Astrosnap + Registax3, Cropping VirtualDub

09h28m23s-09h31m44s UT
click on one of the links below...
(Divx6 codec) not very good quality
(HuffYUV codec) 2Mo, Best quality color
Animated Hires color (gif )!

Later still image showing sunspot 798 : 10h43m12s UT
See processing here









The Monster

Disgusting :)


Fluo100/900, reduc .5, TUC-B&W-raw, 1fpm



Most spectacular  !

click here for
 Highest Quality
Codec HuffYUV 6.6Mo **

click here for
Normal Quality

Codec Divx5.2.1, 118Ko




Parameters and Explanations


Except otherwise posted, all movies are captured at St Rémy lès Chevreuse, France

Related still images (click for large ones)

I was taking surface images for a mosaic and when done told to myself lets have a look on prominences ! I am glad I did !

Fluorite 102/900 refractor, JMI electrical focuser, SM90 & T90 BF30, 1.6x Antares barlow, ASI120MM-S

The first part of the animation is done with 30 individual movies thereafter I switched to 15s as I saw it was moving very fast.

Because of high clouds (from numerous spread contrails) a few frames have been deleted : 317 Frames out of 324

Recordings started at 12:20:45 UT and were stopped at 14:06:46.

About 570 GB of disk space have been used for this work ...

Each individual 16b AVI taken with Firecapture was registered with AS!2, keeping 95%. Resulting images (not all the same size) were converted to 8b with Irfanview. A first alignment was done in RegiStax5 and save to a cropped movie. VirtualDub was then used to delete bad frames and crop the black stripes. RegiStax5 was used again using "align with processed" a few times. The resulting AVI was loaded in Virtualdub to change framerate from 300 to 24. "WonderFox Video to GIF Converter" was used to make GIF files of different frame rate.

Top : ASI 120 MM-S
Middle & Buttom : ASI 174 MM around the fing and whole Sun

Whole Sun ... click for full size !


It was very nice as happening on the rim of the Sun then showings lots of details !
Activity of AR2290 started to be intense soon after 15 UT as seen on the top right of the B&W picture taken with the ASI174MM. I then changed for a camera with a smaller sensor to get more details ...

click on SDO image for full size

PST-DS, Hyperion Zoom eyepiece projection @ 16mm, ASI 120MM-S.
Astromovie of 15 videos, each of 60 s with Firecapture 2.4.07 ... happily mostly without clouds.

ROI=1280x960, Shutter 30 ms, gain 68, 16bit SER files, 30 FPS

Processing AS!2 & RegiStax5, GIMP2, VirtualDub, WonderFox Video to GIF Converter.

NOTE : A few hours later departing sunspot AR2290 emitting a M8-class explosion almost crossed the threshold into X-territory. NASA's Solar Dynamics Observatory (SDO) recorded the extreme ultraviolet flash.



16h26 UT, 1 min capture

Realised with a Toucam Pro, B&W sensor and 2x barlow, 10 fps, Registax4,

Fluorite 100/900 PerlVixen, SolarMax90, 2x & 2" Televue Barlow, mounted on LX200 12".


Sunspot 798
coming back !

More still images 1 2 3 (time written on image UT+2)

Magnetic Arches following a huge X17+ flare which occured on the 09/07.
Original capture rate is 1 saved image every 20s.

The poster on the right shows the processing of the still image in PSP :

1) Original output AVI image (resulting of internal addition of 100 with negative guiding on sunspot in Astrosnap)
2) multiplication of the image by itself, divisor 20 to improve the low intensity prominence
3) multiplication of the image by itself, divisor 250 to improve the high intensity disk surface
4) Image 3 is glued on image 2 but without fusion, then using the rubber with this configuration and care, the lower layer appears slowly as shown (half done)
5) resulting B&W image
6) colorisation, slight sharpening and slight contrast increase.

After the colored image is loaded in Neat-Image for noise reduction.

200 000 km wide prominence


Automatic day long capture setup :

Autoguiding = // on LX200 GPS 12" with astrosnapPro on a sun spot with refractor 60/700, VestaPro BW CCD (RAW mode, manual settings) and white light visual solar filter.

Capture = // on LX200 GPS 12" with astrosnapPro , Fluorite PerlVixen 100/900, Coronado SM90, ToUcam Pro BW CCD (RAW mode, automatic settings) and optical part of Meade apo 2x barlow,

AstrosnapPro in correlation mode, LRBG setting, integration 100 frms, filter 140.

The Monster


Eruptive Prominence


When I installed the Perl-Vixen Fluo 102/900, Coronado SM/TM90 just after the Sun was in view of my location, I did not expect such a view ! Is was really spectacular. Istarted racing to put the vestaPro and parameter AstrosnapPro ! Images in integration mode (50 frames at 10fps) with the B&W sensor modified ToucamPro, adding automatically 1 frame to the AVI every 50 frames for more than an hour the clouds became more and more numerous rendering the work very difficult. In the long and complete version you will see that the begining of the AVI  is not live convoluted then the rest is. If you are interested in precise timing here are the rush AVI  file and the text only data-file 

Sun Disk, Filaments & Prominences


Perl-Vixen Fluo 102/900, Coronado SM/TM90.
AstrosnapPro in integration mode (200 frames at 5fps) with the B&W  ToucamPro + contrast baader filter, aligning and adding automatically 1 frame to the AVI every 100 frames for about 80 min. AVI has been realigned in Registax3 and save in maximum mode then colorized using the process color functions of Aviedit & matrix enhanced (4-3). About 120 frames (original AVI is 126 frames from 10:45:46 every 37s but some clouds made a hole of a few frames).


Whirlpool Prominence


A not so quiet prominence ! Perl-Vixen Fluo 102/900, Coronado SM/TM90.
Looking at the telescope, there was not much to see... it was really steady ! Nevertheless as it was not so small, I decided to make an animation in case it would change ! I used AstrosnapPro in integration mode (200frames at 10fps) with the B&W sensor modified ToucamPro, adding automatically 1 frame to the AVI every 200 frames for about 2 hours. The lens of the 2x Apo Meade Barlow was screwed in front of the BF15. Later AVI has been colorized using the process color functions of Aviedit (blue to 0, green to 30%) and exported as new AVI and Gif. On the right, a single image from the animation.